Obaji Tretinoin in .1% strength. This is the strongest Tretinoin strength they make.

The Anti-Aging Gold Standard


  1. Hello, Would you recommend differin or the Ordinary? I am 24 with hormonal acne.

    1. Hey! I would try both and maybe alternate. Try the Ordinary twice a week, and start with Differin (or equivalent) once a week!

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The Anti-Aging Gold Standard