L’Oréal Research Reveals Potent Anti-Aging Serum Targeting Both Static and Dynamic Wrinkles
New research from L’Oréal suggests a serum combining acetyl hexapeptide-8, dipeptide diaminobutyroyl benzylamide diacetate, and gluconolactone offers a comprehensive solution for combating skin aging. The study, conducted by researchers in China, Japan, and the US, demonstrates the formulation’s effectiveness in addressing both static wrinkles – those visible at rest – and dynamic wrinkles, which appear during facial expressions like smiling.
How the Serum Works: A Synergistic Approach
The serum, referred to as Formula 1, utilizes a blend of five active ingredients: acetyl hexapeptide-8, dipeptide diaminobutyroyl benzylamide diacetate, gluconolactone, niacinamide, and laminaria extract. Acetyl hexapeptide-8 functions by inhibiting the assembly of the SNARE complex, a group of proteins crucial for wrinkle formation, thereby preventing repetitive facial muscle contractions. [1] Dipeptide diaminobutyroyl benzylamide diacetate operates similarly to botulinum toxin, blocking signal transduction to relax the treated area. [1]
Researchers found that the combination of these ingredients performed better than individual components or smaller peptide pairings, enhancing collagen synthesis and improving elasticity. [1]
Boosting Skin Biomarkers with the Anti-Aging Formula
An ex vivo study using skin explants revealed significant increases in key anti-aging biomarkers. The serum boosted type I collagen by 289% and type IV collagen by 109% compared to a control group. [1] levels of elastic fibers increased by 122%, and elastin increased by 252%, contributing to improved skin firmness and preventing sagging.
Clinical Trial Results: Visible Improvements in Wrinkles
Two clinical trials conducted with Chinese female participants validated the serum’s performance in real-world conditions. In the first study, 50 participants applying the serum twice daily showed significant improvements in static wrinkles as early as one week. After 12 weeks, forehead wrinkles improved by 58%, fine lines on the forehead by 69%, crow’s feet by 39%, and under-eye wrinkles by 55%. [1]
Instrumental measurements corroborated these visual improvements. Primos-lite data showed a 34% reduction in crow’s feet and a 29% decrease in forehead wrinkles. Ultrascan UC22 measurements indicated a 12% increase in dermal thickness over the 12-week period. [1]
Reducing Dynamic Wrinkles and Enhancing Overall Skin Appearance
A second clinical study focused on dynamic wrinkles, involving 42 participants. High-speed cameras captured facial expressions during smiles, revealing that the serum significantly softened expression lines. Under a full smile, clinical scoring for under-eye wrinkles decreased by 10%, nasolabial folds by 13%, and crow’s feet by 11%. [1]
Beyond wrinkle reduction, the serum improved overall skin texture and appearance. After 12 weeks, dermatologists observed significant improvements in skin smoothness (30%), radiance (27%), pore appearance (43%), elasticity (33%), and firmness (36%). Participants also reported that their skin felt more rejuvenated and praised the serum’s lightweight, non-greasy texture and compatibility with makeup. [1]
Acetyl Hexapeptide-8: A Key Ingredient in Cosmetic Formulations
Acetyl hexapeptide-8, also known as Argireline®, is a wrinkle-eliminating and skin-tightening agent widely used in the cosmetic industry. [2] It mimics the effects of botulinum toxin, targeting the mechanisms of wrinkle formation. [2] Suppliers like Highassay offer the ingredient in powder and solution forms, with specifications for purity and safety. [2]
Source: International Journal of Cosmetic Science
“The effect of a serum containing acetyl hexapeptide-8, dipeptide diaminobutyroyl benzylamide diacetate and gluconolactone on skin biomarkers, wrinkles and skin texture: Ex vivo and clinical studies”
https://doi.org/10.1111/ics.70087
Authors: Zhu Mingjie, et al