Alpha-glucan is a gentle, sugar-derived humectant that hydrates skin and supports a healthy microbiome without irritation.
Irritation
low
Source
natural
Beauty ingredient research
Browse the review database to understand what an ingredient is, what it does in a beauty formula, when it is useful, and when it deserves caution across skincare, haircare, bodycare, makeup, and more.
20769
Reviewed ingredients
524
Low-concern standouts
2884
Need usage caution
Alpha-glucan is a gentle, sugar-derived humectant that hydrates skin and supports a healthy microbiome without irritation.
Irritation
low
Source
natural
A gentle, plant-derived humectant that hydrates skin and may help balance the skin microbiome.
Irritation
low
Source
natural
A gentle prebiotic sugar that hydrates and feeds beneficial skin bacteria without irritation.
Irritation
low
Source
semi-synthetic
Inulin is a gentle, plant-derived prebiotic that hydrates and supports a balanced skin microbiome, making it a smart choice for sensitive or microbiome-conscious routines.
Irritation
low
Source
natural
A gentle, microbiome-friendly sugar that hydrates and helps balance skin bacteria without irritation.
Irritation
low
Source
biotech
Sialyllactose is a gentle, milk-derived sugar that helps hydrate skin and support a healthy microbiome, but research on its cosmetic benefits is still emerging.
Irritation
low
Source
natural