The AHA 2 BHA 2 Blemish Treatment Serum vs Green Microalgae Retinol Plus Regenerating Serum — Ingredient Comparison

COSRX

The AHA 2 BHA 2 Blemish Treatment Serum

Serum · 18 ingredients · South Korea

Highly concentrated with 2% AHA and 2% BHA, The AHA 2 BHA 2 Blemish Treatment Serum from COSRX quickly and easily soothes acne-scarred skin and instantly cares for blackheads and whiteheads.

Algenist

Green Microalgae Retinol Plus Regenerating Serum

Serum · 37 ingredients

Green Microalgae Retinol Plus serum is a high-performance, science and plant-based product delivering visible results in reducing deep lines and wrinkles, without causing irritation.

Your fit

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How these two interact

No conflicts — safe to layer

Both are Serum products.

Retinoid+Hyaluronic Acid

Counters retinoid dryness

At a glance

Price

$13.60

$45.90 less

$59.50

Key ingredients

Hyaluronic Acid

Holds water in the skin for instant plumping and hydration.

Salicylic Acid

An oil-soluble acid that gets inside pores to clear congestion and calm breakouts.

AHA

A water-soluble acid that exfoliates the surface for smoother, brighter, more even skin.

Glycolic Acid (AHA)

A water-soluble acid that exfoliates the surface for smoother, brighter, more even skin.

Salicylic Acid (BHA)

An oil-soluble acid that gets inside pores to clear congestion and calm breakouts.

Gluconolactone (PHA)

A gentle, large-molecule exfoliant that smooths and hydrates — ideal for sensitive skin.

Zinc PCA

Controls oil and calms blemish-prone skin.

Allantoin

Calms redness and smooths texture — buffers harsh actives beautifully.

Licorice Root

Brightens and soothes at once.

Retinol

A retinoid that speeds cell turnover to smooth texture, soften lines, and clear pores.

Salicylic Acid

An oil-soluble acid that gets inside pores to clear congestion and calm breakouts.

AHA

A water-soluble acid that exfoliates the surface for smoother, brighter, more even skin.

Vitamin E

An antioxidant that protects the barrier and supercharges vitamin C.

Glycerin

The workhorse humectant — simple, effective, and exceptionally well-tolerated.

Salicylic Acid (BHA)

An oil-soluble acid that gets inside pores to clear congestion and calm breakouts.

Lactic Acid (AHA)

A water-soluble acid that exfoliates the surface for smoother, brighter, more even skin.

Glycolic Acid (AHA)

A water-soluble acid that exfoliates the surface for smoother, brighter, more even skin.

Gluconolactone (PHA)

A gentle, large-molecule exfoliant that smooths and hydrates — ideal for sensitive skin.

Panthenol (B5)

A barrier-repairing humectant that hydrates and calms — a sensitive-skin staple.

Sodium PCA

A humectant that pulls water into the skin for plumper, more hydrated skin.

Allantoin

Calms redness and smooths texture — buffers harsh actives beautifully.

Bisabolol

A soothing ingredient that calms redness and irritation.

Helianthus Annuus (Sunflower) Seed Oil

A nourishing plant oil that softens skin and helps seal in moisture.

What it targets

Hydration

Brightening

Anti-aging

Texture

Acne

Pores

Oil control

Soothing

Hydration

Barrier

Brightening

Anti-aging

Texture

Acne

Pores

Oil control

Soothing

Antioxidant