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Acidic pH can deactivate some peptides

Why it's flagged

Many peptides work best at neutral pH; an acidic exfoliant applied right before can reduce their efficacy.

What Haru suggests

Apply peptides at another time (morning routine, or a layer after rinsing/neutralizing the pH).

How settled this is

Commonly advised

A common recommendation rather than a strict rule — adjust it to how your skin actually responds.

Based on general cosmetic consensus — not on your products' specific concentrations, which aren't disclosed and are never inferred from the ingredient list order.

These recommendations are general and don't replace advice from a dermatologist, especially for sensitive skin or a prescribed treatment.