A gentle AHA that exfoliates and hydrates simultaneously. Used in AgeBiome™ Reset rituals to renew surface clarity while preserving pH and biome integrity.

What It Is

Lactic acid is an Alpha Hydroxy Acid (AHA) naturally derived from milk or fermented sugars. Unlike stronger AHAs such as glycolic acid, lactic acid has a larger molecular size, making it a gentler exfoliant that works primarily on the surface of the skin. It breaks down the bonds between dead cells, encourages cell turnover, and simultaneously hydrates—making it ideal for sensitive, dry, or mature skin.

In AgeBiome™ rituals, lactic acid is the go-to exfoliant for Reset phases where skin renewal must be triggered without disrupting biome integrity.

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Why It Matters in Skin & Scalp Health

Lactic acid offers dual action: it clears away cellular buildup while reinforcing hydration and pH balance. This makes it especially valuable in rituals that target the DEJ (Dermal-Epidermal Junction) or scalp follicular surface, where buildup and thinning often begin.

Because it also helps maintain the skin’s natural acidity, lactic acid is a barrier-friendly choice for regular exfoliation in both professional and home-care settings.

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Biological Benefits

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Why AgeBiome™ uses lactic acid in exfoliation and prep:

• Gently dissolves dead skin cells without aggressive peeling
• Promotes cellular turnover to renew surface clarity
• Hydrates as it exfoliates, improving suppleness
• Supports pH balance, protecting the skin’s acid mantle
• Prepares the DEJ and scalp zones for peptide or collagen infusion
• Reduces dullness, congestion, and early texture changes

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How It Feels in Ritual

Lactic acid feels soft yet activating—a slight tingle may be felt, but not irritation. It’s typically used in controlled doses, often layered with hydrating or calming actives, making it ideal for ritual resets without overexposure.

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What It Means for You

Lactic acid gives your skin a fresh start without stress—removing what no longer serves while reinforcing the skin’s natural strength and softness.

“True renewal doesn’t scrape—it teaches the skin how to let go.”

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