Isana Glycerin Serum Dupes & Cheaper Alternatives
From 3 Reddit threads · Updated November 3, 2026
Glycerin-and-betaine moisture boost for dehydrated skin; limited Reddit feedback. Here's what Redditors reach for instead.
#1
Best Overall Alternative
Beta-Glucan Power Moisture Serum
iUNIK·Serum
See alternatives400,000ppm beta-glucan delivers serious damp-skin hydration
- Size: 50 ml
The why
A beta-glucan and glycerin humectant serum for dehydrated, tret-irritated skin, applied to damp skin before moisturizer. It layers neatly for many users, but acne-prone or rosacea-prone skin can face breakouts, heat, stinging, or redness.
One minus
Breakouts and closed comedones show up for some users
Good forDry Skin, Sensitive Skin
The original, at a glance
- Why people love it
- Glycerin serum for extra moisture
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