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Jawline & Double Chin Resharper
Designed for the delicate architecture of the Y-zone.
A 3-action firming care cream that targets the jawline, double chin and neck area, helping support elasticity, smoothness and an even-looking skin tone. Click on the relevant heading to go directly to the section you would like to explore.
Brochure Flow
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Y-Zone Architecture
Why do lower-face lines lose definition over time?
The lower-face contour does not derive its strength from a single line. When moisture loss, texture irregularity and reduced elasticity come together, the transition between the jawline and neck becomes weaker, and the profile loses its definition.
Elasticity Balance
Over time, the skin’s ability to maintain its form and its feeling of elasticity may change, and the defined appearance of the lower-face line may decrease.
Surface Architecture
Dehydration, a rough-looking surface and fine lines may cause light to reflect more unevenly from the skin.
Gravity Perception
The under-chin and neck area are among the delicate zones where the loss of firmness and the tendency toward looseness become most visible over time.
Tone & Shadow
Uneven skin tone and dullness may create unwanted shadows around the profile area, causing the lines to appear less defined.
Marine Adaptation Story
From ocean movement to biotechnological care research
The Adaptive Power of the Ocean
From tidal cycles to a care approach designed for the Y-zone.
The gravitational forces of the Moon and the Sun create a unique tidal cycle in the ocean. Currents, changing pressure conditions and constant movement in coastal areas drive marine organisms to develop strong adaptation mechanisms against challenging environmental conditions.
Some marine organisms and macroalgae living under these conditions have developed unique biological adaptation systems that help preserve the integrity of their cellular structures. Modern blue biotechnology explores these natural resilience mechanisms of marine resources and transforms them into ingredients that offer advanced beauty potential.
Renavie Jawline & Double Chin Resharper 3-in-1 Firming Cream is inspired by this philosophy, bringing powerful marine-derived ingredients together with modern cosmetic science. Our formula directly focuses on the firming and intensive care needs of the jawline, double chin and neck area, where the visible effects of time and external factors may appear.
01
Natural Movement
Tides, currents and changing environmental conditions
02
Biological Adaptation
The unique resilience systems of marine organisms
03
Targeted Care
A formula specially developed for the jawline, double chin and neck area
The Red Macroalgae Story
From red marine macroalgae to contour research.
Red macroalgae are marine organisms that adapt to changing light,
currents and environmental conditions. The Gigartina stellata-derived
extract selected by Renavie holds a special place in the formula
architecture due to active technology research that connects this marine
resource with the structural components of the lower-face appearance.
In the active ingredient supplier’s studies, the approach considers the
extracellular matrix, the appearance of collagen fibers, firmness and
elasticity parameters together with the three-dimensional evaluation of
the under-chin profile. In Renavie, this active story forms the
structural support axis of a broader care system completed with a mannose
phosphate complex and brown seaweed extract.
Source
Red Marine Macroalgae
A selective extract from a macroalgae species adapted to the marine environment.
Research Focus
Dermal Support Architecture
An approach associated with collagen density, elasticity and matrix appearance.
Target Appearance
Lower-Face Contour
Focuses on a more balanced perception of the jawline and under-chin profile.
Role in the Formula
Structural Support Axis
Carries the contour and elasticity focus within Renavie’s triple active architecture.
Blue Biotechnology
From the biological diversity of the sea to measurable skincare research.
Blue biotechnology refers to an approach that examines the structures
and adaptation mechanisms of marine-derived biological resources through
cosmetic research methods. In Renavie’s formula architecture, marine
macroalgae are considered complementary care components across the axes
of contour, matrix organization and tone appearance.
This approach is not based on presenting a marine-derived ingredient as
a “miracle” on its own; rather, it relies on evaluating source
identification, appropriate extraction, active technology research and
finished product testing as distinct stages.
01
Marine-Derived Biological Resource
The unique compound profiles of red and brown macroalgae are examined.
02
Selective Active Research
Relevant extracts are evaluated with a focus on matrix, elasticity, contour or tone appearance.
03
Formulation Compatibility
Active ingredients are brought together in a cosmetic care texture suitable for daily use.
04
Finished Product Validation
Renavie’s finished formula is evaluated through independent instrumental and dermatological tests, separate from active ingredient supplier data.
A Care Approach That Reads Contour Beyond the Surface
The appearance of the Y-zone is a multi-layered perception shaped by elasticity, surface smoothness, moisture balance and light reflection working together.
Three Care Pillars, One Target Area.
Renavie evaluates the appearance of the lower face not only through firmness, but through the relationship between structure, surface and tone.
Who Is It Suitable For?
Developed for those seeking a targeted daily care approach for the jawline, under-chin and neck area.
Those seeking support for definition and contour appearance along the jawline
Those aiming for a more lifted-looking appearance in the under-chin area
Those who value the appearance of elasticity and smoothness in the neck area
Those who desire a more even tone and a more vibrant-looking skin expression
Those looking for dermatologically tested care for normal or sensitive skin types
Those who prefer silicone-free, lightweight and targeted daily care
Evidence Map
Every piece of information is evaluated together with its source.
Separating product results, active ingredient research and usage information makes scientific communication clearer.
01
Final Renavie Product Testing
This group presents the results of instrumental efficacy analysis and dermatological evaluation conducted on volunteers using the completed formula.
Direct Product Performance
02
Active Ingredient Research
This group explains studies conducted by active ingredient suppliers using model formulas, tissue samples or imaging methods.
Formula Ingredient Background
03
Cosmetic Usage Information
This group includes consumer guidance information such as application direction, frequency of use, massage ritual and care experience.
Usage & Care Guide
Final Product Data
Measurable Performance of the Renavie Formula.
These findings go beyond active ingredient studies at the raw material level and represent the independent instrumental performance results of the finished Renavie Jawline & Double Chin Resharper 3-in-1 Firming Cream formula itself.
−
11.69%
10
Female Volunteers
41–69
Age Range
4 Weeks
Regular Use
0
Observed Side Effects
Reference: SKINLAB P.S.A. Independent Instrumental Analysis Report. Protocol No.: 28/10/25/A/16. Study Period: November 6 - December 4, 2025. Results may vary depending on individual skin characteristics.
Formula Confidence
Tested on Normal and Sensitive Skin.
Clinically Tested on Normal and Sensitive Skin, Renavie presents its targeted care approach focused on the jawline, under-chin and neck area within a scientifically verifiable framework, supported by advanced formula features, dermatological tolerance evaluations and instrumental efficacy measurements. In two independent clinical dermatological evaluations, the product was tested on a total of 60 volunteers with normal and sensitive skin types. In the analyses, the average irritation index was determined as 0 (zero), confirming the formula's high safety profile, with no irritation potential and excellent skin tolerance.
Clinical Assurance and Methodology: Dermatological evaluations were conducted by SKINLAB P.S.A., an independent research and consultancy laboratory. Instrumental efficacy analyses are based on objective laboratory measurements obtained at the end of a four-week period of regular use.
Silicone-Free
The formula has been developed without silicone; it offers a lightweight and comfortable care feel.
Dermatological Evaluation
Supported by a dermatological testing approach designed to evaluate skin compatibility.
Instrumental Performance Results
Elasticity and wrinkle width were measured after four weeks of regular use.
Target Area Focus
Clinical Efficacy Study: After four weeks of continuous use, improvements in skin elasticity level and wrinkle dimensions were evaluated and supported by independent laboratory measurements.
Active Technology Data
The Scientific Approach Behind the Formula.
The data presented in this section is based on supplier research for the active technologies used in the Renavie formulation approach. Topics such as the skin support network, collagen organization, tone balance, environmental stress response and localized appearance have been summarized to make the formula's targeted care approach easier to understand. The studies presented belong to the active ingredient suppliers and do not represent independent clinical results conducted on the final Renavie product.
Gigartina Stellata · Active Technology Study
A Structural Care Approach Against the Effects of Gravity.
Gigartina stellata-derived red macroalgae extract forms the foundation of an active technology approach designed to support the appearance of firmness, elasticity and contour in the lower face area. In supplier studies, this active complex was evaluated through parameters associated with collagen density, skin elasticity and the appearance of volume in the under-chin area. This approach targets the skin support network against lower-face looseness, contour loss and changes in jawline appearance that may become more visible over time due to gravity.
+4.2%
Collagen density in 56 days; active supplier study
+7%
Firmness in 28 days; active supplier study
+8%
Elasticity in 28 days; active supplier study
−27.4 mm3
Average under-chin volume difference compared to placebo
Mannose Phosphate Complex · Active Technology Study
Focus on Energy Metabolism and Matrix Organization.
The mannose phosphate-based biotechnological complex offers an active technology approach designed to support the skin's energy metabolism and dermal matrix organization. In supplier studies, this complex was evaluated through parameters associated with mitochondrial energy activity, collagen fiber organization, reticular dermis density and the appearance of neck wrinkles. This approach can be positioned with the goal of a more organized, more supported and more lifted-looking appearance, especially along the lower face and neck line defined as the Y-zone.
2.9×
ATP synthase activity in aged donor cells; in vitro
+36%
Collagen density; ex vivo active technology study
−32.5%
Neck wrinkle volume in 56 days; best result
−11.5%
Crow's feet wrinkle count; compared to placebo
Skin Support Network Protection
Active Ingredient Supplier · Ex Vivo Imaging
Reduction in UV-Induced Oxidative Protein Load
The oxidative protein load formed in skin tissue after UVA/UVB exposure was evaluated using fluorescence imaging. In the image, the red signal represents the accumulation of oxidized proteins increased under environmental stress. This signal, which intensifies under placebo conditions, appears visibly lower in the application containing the active complex.
According to the supplier's evaluation, the active complex reduced oxidized protein formation by up to 40% compared to the UVA/UVB + placebo condition. This finding highlights the scientific approach of the formula technology in helping protect the skin support network against environmental stress factors.
Active Ingredient Supplier · Skin Compatibility Observation
Glycation Effect
In the ex vivo evaluation conducted on skin explants, the effect of the active complex on protein glycation was examined. Glycation is a process in which sugar molecules bind uncontrollably to protein structures, potentially affecting the quality of skin proteins.
In the image, the green fluorescent signal represents the appearance of glycation markers within the tissue. In the application containing the active complex, only a 1% change in glycation level was observed, which was not statistically significant. This result is a skin compatibility-focused finding supporting that the formula approach does not increase protein glycation.
The images in this section are taken from active ingredient supplier studies. They should not be evaluated as clinical results of the final Renavie product; they are used to explain the scientific background of the formula ingredients.
From Mechanism to Tissue Organization
Active Ingredient Supplier Study
Observation of Collagen Fiber Organization
Young skin, mature skin and mature skin samples treated with the active complex were compared using advanced imaging techniques to evaluate the surface organization of collagen fibers. The microscopic surface structures shown in the images demonstrate differences in the arrangement and integrity of collagen fibers within the dermal matrix.
The fiber organization, which becomes more irregular in mature skin over time, was observed to gain a tighter, more organized and more integrated appearance in the sample treated with the active complex. In the supplier study, this approach was reported to significantly support dermal organization in mature skin.
Active Ingredient Supplier · Ex Vivo Study
Collagen Density and Dermal Structure Support
In the ex vivo evaluation conducted on stained skin sections, the effect of the active complex on dermal structure was observed. In the image, the green areas represent collagen fibers, while the pink-red areas represent other structural components of the skin tissue.
In the sample treated with the active complex, collagen fibers were reported to appear denser and more defined; the dermo-epidermal junction was more clearly distinguishable, and epidermal integrity appeared more cohesive. In the supplier study, a 36% increase in reticular dermis density was observed.
Active Ingredient Supplier · LC-OCT Imaging
Imaging of Collagen Fibers
In a comparative clinical study, the effect of the formula containing the active complex on skin structure after 56 days of regular use was examined using LC-OCT imaging. This advanced imaging technique enables structural changes beneath the skin surface to be observed at a microscopic level.
In the image, compared to the baseline condition, new and longer collagen fibers at different depths beneath the dermo-epidermal junction are reported to have become visible by day 56. This finding supports the scientific basis of the active technology approach in helping strengthen the skin support network and promoting a firmer, more lifted-looking appearance in the lower face area.
The images in this section are taken from active ingredient supplier studies. They should not be interpreted as clinical results of the final Renavie product; they are used to explain the scientific background of the formula ingredients.
Regional Appearance Tracking
Active Technology Study · Neck Area Imaging
Appearance Tracking in Neck Micro-Texture
The areas identified in the neck region were comparatively imaged at baseline, day 28 and day 56. The images belong to a supplier study designed to examine the surface appearance of neck lines and micro-textural changes over time. In the 56-day evaluation, a softer, more balanced and more refined-looking texture was observed in the appearance of neck wrinkles after application containing the active complex. Supplier data reported a reduction in neck wrinkle volume and depth.
Active Technology Study · 3D Profile Analysis
Under-Chin Contour and Lifted Appearance
In a comparative study conducted on volunteers with the appearance of sagging in the lower face area, the under-chin area and facial contour were evaluated using 3D profile imaging. The images reveal appearance differences in the jawline, under-chin area and lower-face contour between baseline and the post-application period. After the application containing the active complex, a more lifted-looking profile, a more defined contour and a firmer-looking facial line were observed in the under-chin area. This study supports the formula technology's approach aimed at a clearer, more supported and more sculpted-looking appearance in the lower face area.
Active supplier data were obtained through active technology research and supplier studies. These data should not be interpreted as a direct performance claim for the final Renavie product.
Tone Evenness & Dark Spot Appearance
Active Ingredient Supplier · Ex Vivo UV Model
Pigment Communication After UV Exposure
The cellular communication pathway that regulates the pigmentation process in skin tissue after UV exposure was examined in an ex vivo model. In the images, the upper row represents tissue sections evaluating SDF-1 expression, while the lower row represents tissue sections evaluating melanin appearance. SDF-1 is considered an important communication signal involved in pigment control between fibroblasts and melanocytes.
In the supplier study, a significant decrease in SDF-1 expression and an increase in melanin appearance were observed after UV exposure. In the application containing the active complex, this communication pathway was reported to be supported, while melanin appearance was observed at a more controlled level. This finding supports that the formula technology offers a targeted approach against UV-induced uneven tone and the appearance of dark spots.
Active Ingredient Supplier · Senescence Model
Pigment Control Under Aging Conditions
In an ex vivo model that mimics aging conditions, the cellular communication pathway affecting pigmentation control in skin tissue was evaluated. In the images, SDF-1 expression and melanin appearance were monitored together to examine the effect of aging-related communication weakening on pigment distribution.
According to supplier data, under senescence conditions, SDF-1 expression decreased while melanin appearance increased. In the application containing the active complex, the SDF-1 communication pathway was reported to be supported, and melanin appearance was directed toward a more balanced level. This study demonstrates the scientific approach of the formula technology in targeting aging-related uneven tone and the appearance of dark spots.
Active Ingredient Supplier · Clinical Visual Follow-Up
Visible Uneven Tone Tracking
In a clinical visual follow-up conducted on different skin tones, the appearance of visible dark spots and uneven tone in the facial area was compared using baseline and day 56 images. The images were used to evaluate changes in the perception of spot intensity, pigment distribution and skin tone homogeneity.
In the supplier study, after application containing the active complex, a more balanced and more homogeneous appearance was reported in visible dark spot areas. This evaluation supports the formula technology's approach targeting the appearance of dark spots and uneven tone perception across different skin tones.
Active Ingredient Supplier · Dermoscopic Follow-Up
Spot Intensity and Tone Evenness Perception
Local dark spot areas were comparatively evaluated between baseline and day 28 using dermoscopic imaging. These close-up images were used to monitor the perception of pigment intensity, spot borders and skin tone homogeneity in greater detail.
In the supplier study, after application containing the active complex, the appearance of dark spots was reported to show a softer transition, a more balanced look and a less intense pigment appearance. This finding supports the formula technology's approach of not generally lightening the skin tone, but rather targeting local uneven tone and the appearance of dark spots in a more controlled way.
The images used in this section are illustrative images taken from active ingredient supplier studies. They are not results of the final Renavie product; product performance should be evaluated separately through final formula testing.
Texture & Experience
A comfortable care texture that complements the massage ritual.
The formula has been developed with a care experience designed to spread evenly across the target area and complement upward massage movements.
Lightweight Spread
Provides controlled application around the jawline and neck.
Massage-Friendly Glide
Helps gentle movements glide comfortably over the skin.
Comfortable Finish
Provides a well-cared-for skin feel that fits seamlessly into a daily skincare routine.
Silicone-Free
The formulation approach has been developed without the use of silicone.
Daily Routine
Its Place in Morning and Evening Care.
Position Renavie as a care step for clean skin, focused on the jawline and neck area.
Morning Ritual
Preparing for a Protective Day
01
Cleansing
Prepare the skin for daily skincare products.
02
Renavie Application
Apply to the jawline and neck area using upward movements.
03
Sunscreen
Complete your morning routine with a sunscreen suitable for your skin type.
Evening Ritual
Controlled Massage and Care
01
Purifying
Gently remove residue accumulated on the skin throughout the day.
02
Target Area Care
Distribute the product over the jawline, under-chin and neck area.
03
Jawline Massage
Complete the ritual with a gentle upward massage for 30–40 seconds.
Application Amount
Start with a small amount and distribute evenly over the target area.
The exact amount may vary depending on the skin surface and personal application preference. Spreading the product in a thin layer and adding a small amount when needed helps ensure controlled application.
01
Jawline
Thin Layer
02
Under-Chin Area
Even Distribution
03
Neck Area
Add When Needed
Visual representation only. During use, follow the product packaging and application instructions.
Application Ritual
Jawline Massage Routine
Apply the product to the jawline and neck area. Follow the movements with light pressure to support the skin’s natural flow.
01
Step 01 · Muscle Activation
Prepare the neck and jawline for movement.
This is an exercise designed to activate the muscles in the neck and jawline area. After applying the product, perform it with gentle massage for approximately 30–40 seconds.
30–40 Seconds
Gentle Pressure
02
Step 02 · Lower Face Exercise
Bring controlled movement to the lower face and under-chin area.
Repeat this movement for the lower face and under-chin area in a comfortable, balanced and controlled way for approximately 30–40 seconds.
30–40 Seconds
Controlled Repetition
03
Step 03 · Upward Massage
Move from the jawline toward the cheeks.
Apply gentle upward massage movements from the jawline toward the cheeks. Continue the movement for approximately 30–40 seconds until the product is fully absorbed.
30–40 Seconds
Upward Movement
Application Guide
Gentle, Controlled and Consistent.
Apply the jawline massage with light pressure and upward movements that help maintain skin comfort.
Do
Apply the product to clean, dry skin.
Move upward from the neck toward the jawline.
Use light and balanced pressure.
Apply regularly in the morning and evening.
Avoid
Avoid pulling or pressing the skin harshly.
Do not apply to irritated or damaged skin.
Avoid direct contact with the eye area and mucous membranes.
Do not continue the massage if discomfort occurs.
FAQ
Frequently Asked Questions About Jawline Care.
Brief information on the product’s application area, its place in the care ritual and how test results should be interpreted.
Which areas should the product be applied to?
It is developed to be applied to the jawline, under-chin and neck area. It should not be applied around the eye area.
How often should it be used?
It is recommended to apply twice daily, morning and evening, to clean skin. Regular use supports the continuity of the care ritual.
Is massage required?
It is not required. However, applying the product with gentle upward movements from the neck toward the jawline helps the product spread evenly on the skin and supports the care experience.
Are active ingredient studies final product results?
No. Studies conducted by active ingredient suppliers belong to the relevant active technologies. Renavie final product results have been evaluated separately through independent clinical laboratory measurements and dermatological tests conducted on the finished formula.
Has it been evaluated on sensitive skin?
The product has been evaluated under dermatological supervision on volunteers with normal and sensitive skin types. If personal sensitivity occurs during use, use should be discontinued temporarily.
Quick Product Summary
View Product
Jawline & Double Chin Resharper 3-in-1 Firming Cream
Take a quick look at the daily care cream focused on the lower face and neck area.
Target Area
Jawline, under-chin and neck area
Care Focus
Elasticity, smoothness, contour and tone appearance
Use
Morning and evening on clean skin
Application
Gentle upward massage movements
Formula
Selected marine-derived ingredients, silicone-free
Testing
Four-week instrumental efficacy and dermatological evaluation
Volume
50 ml