Article: Bio-Retinol Eye Cream: Independent Lab Results After 4 Weeks
Bio-Retinol Eye Cream: Independent Lab Results After 4 Weeks
We Sent Our Eye Cream to an Independent Lab. Here Are the Results.
We already believed this product worked.
We had used it ourselves. We had collected feedback from testers. The results were consistent. But personal experience and brand testing are not the same as independent evaluation.
So we sent Re/Boost Collagen Smooth & Bright Eye Cream to a certified dermatological laboratory in Poland with no involvement in the outcome. We asked them to evaluate whether the cream could help improve the appearance of fine lines, under-eye brightness, and skin elasticity.
The results spoke for themselves.
The Study Setup
Twenty volunteers used the eye cream daily for four weeks following a standardized protocol. During the study, no other eye-area products were used.
After four weeks, a dermatologist evaluated ten volunteers in detail. Clinical instruments were used to assess skin brightness around the eyes, wrinkle depth and length, and skin elasticity. Standardized before-and-after photographs were also taken to document visible changes in the appearance of dark circles.
Result 1: Brighter, More Even Skin Under the Eyes
Sixteen of the twenty participants began the study with noticeable dark circles.
Skin brightness was assessed using a Konica Minolta 600D spectrophotometer, a clinical instrument that measures skin color and tone. After four weeks of daily use, 7 out of 10 measured volunteers showed an increase in under-eye brightness.
The instrument readings indicated a more even-looking skin tone in the under-eye area. These findings were supported by standardized before-and-after photographs.
Result 2: Smoother-Looking Skin
Wrinkle length and depth were assessed using the Courage + Khazaka Visioline VL 650 system. The laboratory created silicone replicas of each volunteer's skin surface and analyzed them using specialized imaging software capable of detecting fine surface changes.
After four weeks of use, wrinkle length decreased in 8 out of 10 volunteers. The reduction ranged from 6% to 19%, with an average decrease of 11%.
Wrinkle depth decreased in 8 out of 10 volunteers. The reduction ranged from 5% to 14%, with an average decrease of 8%.
Result 3: Improved Skin Elasticity
Skin elasticity was assessed using the Courage + Khazaka Cutometer MPA 580, a device that applies controlled suction to the skin and measures how it responds and returns to its original state. This method is widely used to evaluate skin elasticity.
After four weeks of use, 9 out of 10 volunteers showed improved skin elasticity. Individual improvements ranged from 6% to 23%, with an average improvement of 16%.
What the Independent Lab Observed
Based on the study findings, the laboratory observed the following after four weeks of use:
• Reduced wrinkle length in most measured volunteers
• Reduced wrinkle depth in most measured volunteers
• Improved skin elasticity in most measured volunteers
• Increased under-eye brightness in most measured volunteers
• A more even-looking skin tone in the under-eye area
• Smoother-looking skin around the eyes
These findings are based on an independent dermatological study and the measurements collected during the evaluation.
The Formula Behind the Study
The formula combines bio-retinol from Bidens Pilosa, caffeine, and botanical extracts including alpine willowherb, horse chestnut, horsetail, avocado, and red algae harvested from the Estonian coast.
At the heart of the formula is bio-retinol from Bidens Pilosa, a plant-derived ingredient often used as an alternative to traditional retinol. It is chosen for its ability to support the appearance of smoother, more refined-looking skin and for its gentle feel on the skin.
Every ingredient is of natural origin. The full Re/Boost Collagen range is certified by ECOCERT according to the COSMOS Standard.
Why Independent Testing Matters
The clean beauty market is full of claims. "Clinically tested." "Dermatologist approved." Without information about how testing was conducted, who performed it, and what was measured, these statements can be difficult to evaluate.
We chose to work with an independent laboratory and share the study methodology and results. Not a simplified summary, and not a single marketing statistic taken out of context.
If you'd like to learn more about our formulation approach, ECOCERT certification, or bio-retinol, you'll find additional information on our website.
Shop Re/Boost Collagen Smooth & Bright Eye Cream at joikusa.com
What is bio-retinol?
Bio-retinol is a plant-derived alternative often used in place of traditional retinol. In this eye cream, it comes from Bidens Pilosa, a flowering plant. It is used in skincare to support the appearance of smoother- and firmer-looking skin and is often chosen for its gentle feel on the skin.
Does bio-retinol work like retinol?
Bio-retinol is used to address many of the same visible skin concerns associated with retinol, including the appearance of fine lines and loss of firmness. In an independent laboratory study, skin elasticity improved by an average of 16% after four weeks of use.
Is plant retinol better than synthetic retinol?
The choice depends on individual skin needs and preferences. Bio-retinol is often selected by people looking for a plant-derived alternative to traditional retinol and is known for its gentle feel on the skin.
How long does it take to see results from an eye cream?
In our independent study, volunteers used the cream daily for four weeks. After that period, measurements showed improvements in skin elasticity, under-eye brightness, and wrinkle measurements. Results may vary.
Does this eye cream reduce the appearance of wrinkles?
In an independent laboratory study, wrinkle length and wrinkle depth decreased in most measured volunteers after four weeks of use. These findings were based on instrumental measurements performed by the laboratory.
Is the eye cream tested?
Yes. The product was evaluated by an independent dermatological laboratory. Skin elasticity, wrinkle measurements, and under-eye brightness were assessed using clinical instruments over a four-week period.
When should you start using eye cream?
There is no fixed age. Many people choose to use eye cream when they begin to notice dryness, fine lines, or signs of fatigue around the eyes.
Is this eye cream suitable for delicate skin around the eyes?
The formula uses bio-retinol from Bidens Pilosa and is certified by ECOCERT according to the COSMOS Standard. Individual experiences may vary.
