Research Methodology & Source Notes
Research for this site was refreshed on September 25, 2026. To honor the site's outbound-link policy, source domains are listed as text rather than clickable links.
Primary product sources reviewed
- Synevra presentation: trySynevra.com — ingredients, package structure, price, guarantee, FAQ, and safety/disclaimer language.
- City Beauty: citybeauty.com — Advanced Action Sculpting Cream ingredient/positioning page.
- Beverly Hills MD: beverlyhillsmd.com — Lift + Firm Sculpting Cream official product information.
- Plexaderm: plexaderm.com — Rapid Reduction Serum official product and ingredient information.
- Crepe Erase: crepeerase.com and brand blog — Advanced Body Repair Treatment positioning and crepey-skin education.
Research literature reviewed
- Zhu M. et al. (2026), International Journal of Cosmetic Science: a multi-ingredient serum containing acetyl hexapeptide-8, Dipeptide Diaminobutyroyl Benzylamide Diacetate, gluconolactone, niacinamide, and laminaria extract.
- Papakonstantinou-style topical hyaluronic-acid literature summarized in a 2022/2023 review on topical HA and signs of skin aging.
- Al-Niaimi & Chiang (2017), Journal of Clinical and Aesthetic Dermatology: topical vitamin C mechanisms and clinical applications.
- Sanabria B. et al. (2023), Journal of Drugs in Dermatology: systematic review of topical vitamin C and wrinkle appearance.
Evidence rule
A study on an ingredient or a different finished formula is never presented as direct proof of Synevra. Where concentrations, molecular weights, or complete formula details are not public, we say so.