Ingredient
Tetrapeptide-21
What does it do
How it works
-
Ingredient Family
N/A
Comedogenicity (?)
None
User Skin Reactions (?)
1 User Reaction
100% ☺
0% ☹
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This month, 53 users found out Tetrapeptide-21 caused a negative reaction
User Reaction Breakdown by Skin type
Skin concerns of users who reacted poorly
