Best Korean Skincare COSRX Niacinamide Set

Introducing the best Korean Skincare COSRX Niacinamide Set, a powerful combination of niacinamide and peptides for comprehensive skincare.

Best Korean Skincare: COSRX Niacinamide 15% Peptide Booster Set

What the COSRX Niacinamide 15% Peptide Booster Set Includes

Although exact contents may vary by region/offer, the set usually pairs:

1. The Niacinamide 15% Serum (15 % niacinamide + acetyl glucosamine + zinc PCA), which addresses Oil, pores, and uneven tone.
2. The 6 Peptide Skin Booster (a toner-/serum-type product with six peptides) to boost skin condition (firmness, texture, pores, sebum).
3. Possibly other add-ons (travel size, gift set packaging) since it’s a “set/gift set”.

What skin concerns is it good for

1. Enlarged pores, excess Oil/sebum. The Niacinamide 15% formula is explicitly for oily/combination/acne-prone skin.
2. Uneven skin tone, post-acne marks, rough texture. Niacinamide + acetyl glucosamine + zinc PCA target hyperpigmentation + texture.
3. Skin firmness, fine lines, loss of elasticity. The peptide booster helps with multiple skin concerns (texture, tone, pores, fine lines).
4. If you’re looking for a combo of “acne/Oil control + anti-aging/texture improvement”, this set covers both.

Who it may not be ideal for

1. Dehydrated, flaky skin
2. People who already use many potent actives (retinol, strong acids) and whose skin is sensitive or already irritated.

Key ingredients & how they work

1. Niacinamide (15%): Known for controlling Oil/sebum, minimizing pore appearance, soothing inflammation, and improving tone.
2. Acetyl Glucosamine (N-Acetylglucosamine): Works with niacinamide to fade hyperpigmentation.
3. Zinc PCA: Helps regulate sebum production + has some soothing/anti-inflammatory effects.
4. Peptides (in the peptide booster): The booster lists six peptides, including SH-Polypeptide-121, Copper Tripeptide-1, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Oligopeptide-68, Palmitoyl Tripeptide-8, and Acetyl Hexapeptide-8. These aim for texture, firmness, sebum/pore control, and soothing.
5. Essential synergy: According to COSRX, using peptides + niacinamide together boosts results (e.g., pigmentation, pores) more than either alone.

Water, Dipropylene Glycol, Glycerin, Pentylene Glycol, 1,2-Hexanediol, Niacinamide, Ammonium Acryloyldimethyltaurate/VP Copolymer, Polyacrylate Crosspolymer-6, Butylene Glycol, Xanthan Gum, Ethylhexylglycerin, Adenosine, Polyquaternium-51, Disodium EDTA, Citric Acid, Caprylyl Glycol, T-Butyl Alcohol, Sodium PCA, Sodium Lactate, Acetyl Hexapeptide-8, Copper Tripeptide-1, PCA, SH-Polypeptide-121, Serine, Alanine, Allantoin, Sodium Hyaluronate, Acetyl Glucosamine, Glycine, Glutamic Acid, Lysine HCl, Threonine, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Arginine, Tocopherol, Oligopeptide-68, Proline, Dextran, Palmitoyl Tripeptide-8, Glycine Soja (soybean) Oil, Hydrogenated Lecithin, Potassium Sorbate, Sodium Oleate.

How to use

1. Cleanser: Use your usual gentle cleanser to start with a clean base.
2. Peptide Booster: After cleansing (and, if you use one, toner), apply the 6 Peptide Skin Booster. They suggest using it as the “first step” serum/booster.
3. Niacinamide 15 Serum: After the booster has absorbed, apply the Niacinamide 15% serum. A few drops over the face, focusing on areas with pores, oiliness, and uneven tone.
4. Moisturiser: Follow with your usual cream or gel to lock in the actives.

Tips:

1. If you’re layering other actives (e.g., AHAs, retinol): On nights you use retinol, ensure your skin is well hydrated and not irritated; you may reduce use of strong exfoliants. The peptide booster can be used both in the morning & night.
2. Do a patch test: Even though these are widely tolerated, 15% niacinamide + peptides are powerful — test on a small area the first time.
3. Give it time: Many of the benefits (pores, texture, tone) will show over 4-8 weeks of consistent use.
4. Morning: Cleanser → Peptide Booster → Niacinamide 15% → Moisturiser → Sunscreen
5. Evening: Cleanser → Peptide Booster → Niacinamide 15% → Moisturiser. If using heavier actives (like retinol), use them only 2-3 nights/week and alternate nights with just this set + a gentle moisturiser.

Layering & compatibility with other activities

1. According to COSRX, Peptides pair well with many actives, including niacinamide, vitamin C, retinol, and snail mucin.
2. They advise: After absorbing the peptide product, apply vitamin C, retinol, etc. Using niacinamide + peptide is explicitly recommended.
3. Avoid overloading: If you’re also using strong exfoliants (e.g., heavy AHAs/BHAs), consider spacing them out nights to avoid irritation.
4. If your skin is sensitive, use this set only every other night initially and supplement with calming/hydrating products.

Why this set can be a good gift/value

1. It offers two primary actives(niacinamide + peptides) in one package, providing broader benefits than a straightforward serum.
2. The “gift set” format may include more volume or additional items, making it suitable for someone wanting to upgrade their skincare or try a premium K-beauty set.

Pros:

1. Get ready for the power of high-concentration niacinamide (15%), a rarity in many serums, in this set. A peptide blend addresses multiple skin concerns, not just one.
2. Suitable for oily/combination/acne-prone skin plus anti-aging/texture concerns.
3. Trusted Korean brand, credible ingredient profiles.

Cons:

1. Potent actives = higher chance of sensitivity/irritation, especially if you layer many other products.
2. If your primary concern is dryness and you have few pores and little Oil, some of the benefits may be less relevant.