Alloy's M4 skincare is the first estriol-powered formula clinically proven to rebuild collagen, restore elasticity, and visibly reduce wrinkles in just 12 weeks.
Tell Us About Your Skin (5-10 minutes)+Get a Treatment Plan (less than 12 hours)+Delivered to Your Door for Free+Ongoing Care & Support+
Frequently Asked Questions
What were the results of the clinical studies of M4 products?+When should I start using the M4 Skincare line?+What is M4 Estriol Face Cream?+Why do the M4 skincare products use estriol instead of estradiol?+Is estriol really as effective as tretinoin?+Why were the eye cream and the face serum added to the line?+Can I use M4 with my other favorite products? +Can I use all three M4 products?+Who conducted the most recent study?+Do the M4 products increase estrogen levels?+
Skin that feels like yours again
Your skin isn't aging, it's changing. Estriol gives it exactly what it's been missing.
*2024 Study: Based on a 12-week randomized, double-blind, placebo-controlled clinical study (n=86) using Corneometer®, Cutometer®, and dermaspectrophotometer instrumental measurements, investigator clinical grading, and subject self-asses
2025 Study: Based on a 12-week clinical study (n=34) using Corneometer®, Moisturemeter EpiD, Cutometer®, and Antera 3D® instrumental measurements, expert visual and tactile grading, and self-assessment questionnaire.
2026 Study: Based on a 12-week clinical study (n=38) using Corneometer®, Moisturemeter EpiD, Cutometer®, and Antera 3D® instrumental measurements, expert visual and tactile grading, and self-assessment questionnaire.
