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disclaimer: This article is not meant to treat, diagnose or address any specific medical concerns
The one nuance worth knowing: applying both in the exact same application, layered directly on top of each other, is not usually recommended, since some formulations can interact in ways that reduce retinol's effectiveness
[1] Pyroglutamic acid may function in glutamate storage, and acts to oppose the action of glutamate, including in the brain
Sanchez-Macedo, N
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