Lactobionic Acid
4-O-beta-D-galactopyranosyl-D-gluconic acid
Good
Safe Pores
0/5
Irritancy
0/5
FA Safe
✅ Yes
Pregnancy
✅ Safe
Vegan
❌ No
Science & Benefits
Lactobionic Acid is a third-generation Polyhydroxy Acid (PHA) derived from the lactose in milk. It is a 'bionic' acid, meaning it is a powerhouse humectant that forms a polyhydroxy film on the skin, binding massive amounts of water. It also acts as a potent antioxidant and iron chelator. It is zero-comedogenic and zero-irritant. For acne patients with sensitized barriers, it is the 'logical winner' for providing ultra-gentle resurfacing while physically shielding the skin from environmental stress.
Safety Alerts
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Non-Vegan: This ingredient is typically derived from animal sources (e.g. beeswax, lanolin, carmine).