Hello Grand!
I think there's no indication to use AHA+ ONLY with The Regimen. The AHA+ lotion itself is already another treatment apart (for scars and hyperpigmentation) from The Regimen, but can also go in the place of the standard mosturizer that comes with the kit. Although I think it works best with the other products of the brand, I think you could give it a try! Good luck. See ya.
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