Ingredient Encyclopedia

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PHA (Gluconolactone/Lactobionic Acid) – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025

PHA (Gluconolactone/Lactobionic Acid) – Benefits, Side Effects & UsesPHAs are gentle exfoliants with larger molecules, often kinder to sensitive skin.What are PHAs?PHAs are explained below in plain English so you can decide if they belong in your routine.Key Benefits Mild smoothing Hydration-friendly exfoliation Who Should Use Them?Sensitive skin wanting gentle resurfacingWho Should Avoid Them?Over-exfoliation if combined with strong acidsHow to Use It in a Routine Use 1–3x/week SPF daily VerdictSoft-touch exfoliation category—great starter acids.👉 Try our PHA Glow Tonic.FAQsGentler than AHA? Often yes.How often? 1–3x/week.SPF? Yes.Related: Lactic Acid · Glycolic Acid · Salicylic Acid Related Guides AHA vs PHA – Gentle Exfoliation Options