Tretinoin 0.025%, 0.05%, 0.1%. The exact mode of action of tretinoin is unknown. It is suggested that topical tretinoin decreases cohesiveness of follicular epithelial cells with decreased ...

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It’s a prescription-only retinoid that’s commonly referred to as tret, Retin-A, or Altreno ... Although topical retinoids, like tretinoin gel or cream, have not been extensively studied ...