iUNIK Beta-Glucan Power Moisture Serum Dupes &amp; Cheaper Alternatives

Size: 30 ml
Price per ml: $0.20/ml (original $0.30/ml)

The why

A watery centella ampoule that people use before moisturizer or tret. It suits irritated, dehydrated, or barrier-damaged skin. On very reactive faces, it can sting, break out, or do basically nothing.

One minus

Can trigger closed comedones or whiteheads

Good forSensitive Skin, Dry Skin

Both recommended for Redness / Irritation; discussed alongside iUNIK Beta-Glucan Power Moisture Serum in 48 threads.

“I have combo acne prone skin”
— Reddit, r/AsianBeauty

iUNIK Beta-Glucan Power Moisture Serum

The original, at a glance

Why people love it: Hydration monster for tight, flaky skin
Price: $15.00 · 50 ml · $0.30/ml

#2

Best Cheaper Alternative

187mentions

Madagascar Centella Probio-Cica Intensive Ampoule

Skin1004·Serum

Centella-heavy barrier rescue

Size: 30 ml
Price per ml: $0.23/ml (original $0.30/ml)

The why

A milky, thicker ampoule built around centella, niacinamide, panthenol, ceramide NP, and lactobacillus ferment. It suits dry, irritated, tret-on-a-bad-day skin and sits nicely under moisturizer. Acne-prone folks can still get clogged or break out.

One minus

Can clog or trigger acne for some

Good forDry Skin, Sensitive Skin

Both recommended for Redness / Irritation; discussed alongside iUNIK Beta-Glucan Power Moisture Serum in 16 threads.

“I use tret and am prone to irritation/acne, and this does an amazing double duty of hydrating and soothing in that context.”
— Reddit, r/AsianBeauty

#3

Best for Dehydration

404mentions

Hyaluronic Acid 2% + B5

The Ordinary·Serum

Damp-skin hydration that actually plumps

Size: 30 ml
Price per ml: $0.62/ml (original $0.30/ml)

The why

A hyaluronic acid serum with panthenol and glycerin that people mainly use for dehydration and post-retinoid tightness. Best on damp skin under moisturizer, especially if your barrier is cranky. Dry climates and heavy layering can make it feel sticky or useless.

One minus

Sticky, tacky, and prone to pilling

Good forDry Skin, Sensitive Skin

Both recommended for Dehydration; discussed alongside iUNIK Beta-Glucan Power Moisture Serum in 10 threads.

“I was having some irritation, especially on my neck, so I put The Ordinary Hyaluronic Acid 2% + B5 (with Ceramides) on first”
— Reddit, r/SkincareAddiction

Azelaic Acid Hyaluron Redness Soothing Serum

#4

Best for Redness / Irritation

713mentions

Anua·Serum

10% azelaic acid for redness and breakouts

Size: 30 ml
Price per ml: $0.73/ml (original $0.30/ml)

The why

Studies found azelaic acid helps acne, and Redditors say this 10% serum is especially good for redness, breakouts, and post-acne marks. It’s lightweight and calming, though some people get stinging, dryness, or a weak response.

One minus

Can sting or burn on a compromised barrier

Good forSensitive Skin, Combination Skin, Oily Skin

Both recommended for Acne; discussed alongside iUNIK Beta-Glucan Power Moisture Serum in 31 threads.