Could this suit my routine?
A candidate for a fluid first step when you prefer lighter layers.
↗Photography: approved brand material ↗
Official brand photo · 150 mL. Badges are part of the brand image.
COSRX
The 6 Peptide Skin Booster Serum
A toner-like serum combining six peptides with niacinamide and sodium hyaluronate.
Source: global / US official page ↗
150 mLBrand information
Start with your question
What does the texture look like?
Light, watery booster.
When does it go on?
Apply a few drops after cleansing, before another serum or moisturizer.
Based on brand information and published sources, not a hands-on review.
01 / TEXTURE
A closer look.
Brand description
Light, watery booster.
A photo shows appearance, not absorption speed or how sticky a product will feel on your skin.
02 / INGREDIENTS
What’s in it?
Six-peptide blendNiacinamideSodium hyaluronate
These are selected ingredients highlighted by the brand, not the complete ingredient list. An ingredient name alone does not predict the result of a finished formula.
Ingredients on the global / US official page ↗What these ingredients do
Read the ingredient guide ↗Ingredient research provides context. The studies below did not test this product.
Niacinamide
Niacinamide
A form of vitamin B3 studied for uneven-looking tone and skin texture.
Research and what to check
In 50 women aged 40–60, a moisturizer with 5% niacinamide improved several visible signs of aging over 12 weeks compared with its base. The authors were affiliated with P&G.
Bissett et al., 2004 · controlled facial study ↗This was one formula and a specific study population. It does not establish the same effect for every niacinamide product or show that a higher percentage is better.
Hyaluronic Acid / Sodium Hyaluronate
Hyaluronic acid
A water-binding ingredient used in moisturizers; sodium hyaluronate is a related salt form.
Research and what to check
A four-week trial on the legs of 36 older adults found higher hydration with a low-molecular-weight HA lotion than a high-molecular-weight lotion or the base. Water loss and symptom scores did not differ significantly.
Muhammad et al., 2024 · randomized trial ↗A leg study in older adults cannot establish facial results for every serum. Molecular weight, concentration and the whole formula matter.
Make the choice fit your day.
Start with the job this product would do, then check whether another product already fills that step. The guides below explain routine order and ingredient evidence without turning every ingredient into an extra purchase.
03 / YOUR ROUTINE
Where it fits.
Official directions
Apply a few drops after cleansing, before another serum or moisturizer.
The linked listing includes multipacks; this entry covers one 150 mL bottle.
Understand your routine ↗04 / THE NEXT STEP
Check the exact product before you buy.
Check the size, full ingredient list, price, stock and delivery to your address on the seller’s page.
SIDE BY SIDE
Same step. Different options.
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A hydrating serum featuring PDRN, hyaluronic acid and hydrolyzed collagen.
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A water-gel serum featuring green tea and hyaluronic acid.
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SerumsGlow Serum: Propolis + Niacinamide
A propolis and niacinamide serum with a cushiony, honey-like texture.
Explore the productSources & product information
Sources checked: 2026-10-09
Product details follow the linked global / US sources. Check the label sold in your country for ingredients and directions.
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