Mojo155 Mojo155
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I would estimate it to be 0.01%

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Why do you think so?

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You can call it a trained intuition from reviewing a lot of formulas. There is no way to know for sure unless the manufacturer confirms it. 0.01% is the minimal effective concentration for retinol, and given how this product is marketed (no warning on intensity for example), I'd assume that this is what they went for.

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