Can these products turn back the clock on gray hair?
Symptom relief
Recruiting now
This study aims to see if two cosmetic hair products can reduce the visible appearance of gray hair. It will involve 380 healthy adults aged 25-60 who have 15-35% naturally gray hair. Participants will use one of the products on their whole scalp for six months while researchers …
Phase: NA • Sponsor: Unilever R&D • Aim: Symptom relief
Last updated Apr 02, 2026 09:57 UTC