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Go easy on yourself and focus on sustainability over restriction
Kojic acid can be potent, so we focused on options that balance exfoliation with hydration
Common lab readouts: Hormone signaling markers, gene/protein expression panels, and endocrine/metabolic biomarker tracking (model-dependent)
GHK-Cu is compatible with most ingredients, including niacinamide and hyaluronic acid, but should not be combined with alpha hydroxy acids (AHAs) or strong acids in the same formula, as these may reduce efficacy
PSPeptides ships everything together with the same free same-day processing
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