Comparison between COSRX The Niacinamide 15 Serum vs. COSRX The Vitamin C 13 Serum

Find out which product is better for your skin.

15 Ingredients 25

1
Water
1
Water
2
Pentylene Glycol
2
Ascorbic Acid (Vitamin C)
3
Niacinamide
3
Butylene Glycol
4
Butylene Glycol
4
Dipropylene Glycol
5
Acetyl Glucosamine
5
Tromethamine
6
1,2-Hexanediol
6
3-0-Ethyl Ascorbic Acid
7
Zinc PCA
7
Panthenol
8
Trehalose
8
Acetyl Glucosamine
-- Show others --
Uniqueness8 out of 15
53.3%
Uniqueness18 out of 25
72.0%

Positive Effects

Find out what good effects the product has

ECO Metrics

Find out how eco-friendly the components are
Vegan
No
No
Cruelty free
Yes
Yes
Reef friendly
Yes
Yes
Ozone layer safe
Yes
Yes
Organic score
natural
4 out of 15
27%
chemical
10 out of 15
67%
natural
6 out of 25
24%
chemical
16 out of 25
64%

Concerns

Pay attention to these components
-- Extra information --

Components by Skin Type

Find out what components are good or bad for your skin type
Dry skin
Positive: 4Negative: 0
Butylene Glycol#41,2-Hexanediol#6Allantoin#11Tocopherol#15
Oily skin
Positive: 1Negative: 0
Allantoin#11
Sensitive skin
Positive: 1Negative: 1
Allantoin#11Citric Acid#14
Dry skin
Positive: 7Negative: 0
Ascorbic Acid (Vitamin C)#2Butylene Glycol#3Panthenol#7Caffeine#9Sodium Hyaluronate#10Allantoin#16Tocopherol#20
Oily skin
Positive: 1Negative: 0
Allantoin#16
Sensitive skin
Positive: 1Negative: 0
Allantoin#16

Detailed view

COSRX The Niacinamide 15 Serum vs. COSRX The Vitamin C 13 Serum
Position 1
Both products have the same component on this position.

#1Water

Origin: natural
Role: Solvent
EWG Rating [ 1 ]

Water is a great solvent. It’s neutral and doesn’t provide any strong positive or negative effects. It just helps components to mix better and to transport active components.

Position 2

#2Pentylene Glycol

Origin: chemical
Role: Skin conditioning agent, Solvent
Moisturizing
Hair conditioning
EWG Rating [ 1 ]
CIR Rating [ A ]

Pentylene Glycol is a great replacement for Propylene Glycol. It has very similar characteristics but it’s derived from plants (usually from corn). Natural cosmetics lovers will find this component very useful. It enhances the moisturizing effect of cosmetic products, improves the efficiency of preservatives and it’s an effective emulsifier. It’s approved by ECOCERT and COSMOS so it’s considered to be 100% safe and can be used in vegan products.

-- versus --

#2Ascorbic Acid (Vitamin C)

Origin: chemical
Role: Skin conditioning agent, Buffering agent, Fragrance ingredient, Masking
Antioxidants
UV Protection
Soothing
Anti-aging
Lightening
Elasticity improvement
Rejuvenation
Regeneration
EWG Rating [ 1 ]
CIR Rating [ A ]
Good for dry skin
Good for dry skin

Vitamin C is known for its strong antioxidant activity. It helps to slow down aging processes. The other positive effect of this ingredient is that it helps to make skin tone even. It's a great ingredient to counter dark areas and uneven skin tone. It's well-researched and considered safe. But it's acid and can irritate the skin if used too often.

Position 3

#3Niacinamide

Origin: chemical
Role: Skin conditioning agent, Hair conditioning, Smoothing
Antioxidants
Acne fighting
Pore Shrinking
Soothing
Anti-aging
Lightening
Elasticity improvement
EWG Rating [ 1 ]

Niacinamide is a form of Vitamin B3 and it’s a superman in cosmetics. This ingredient is researched very well. It has a lot of positive reviews from scientists and experts. It's very important for healthy skin. The lack of this vitamin can cause dryness, itching, and sun sensitivity. The component removes small wrinkles and fine lines, heals wounds, and prevents the forming of cancer cells. It also makes the skin tone even by removing dark spots. It increases ceramide synthesis which increases the overall health of your skin. It fights acne and lowers pores.

Researches say that 4-5% of Niacinamide is the most effective concentration for skincare use.

-- versus --

#3Butylene Glycol

Origin: chemical
Role: Skin conditioning agent, Fragrance ingredient, Humectant, Masking, Solvent, Viscosity controlling agent
Moisturizing
Softening
Hair protection
Comedogenic rating [ 1 ]
EWG Rating [ 1 ]
CIR Rating [ A ]
Good for dry skin
Good for dry skin

Butylene Glycol is a very popular synthetic alcohol. It helps the product to absorb deeper and faster. It is also a solvent for other ingredients. As for the skin benefits, it helps to attract water and helps to make the skin softer.

Unlike many other “Glycols”, it is not harmful and that's why it is used in many products. It was approved by US FDA and US EPA for usage.

Position 4

#4Butylene Glycol

Origin: chemical
Role: Skin conditioning agent, Fragrance ingredient, Humectant, Masking, Solvent, Viscosity controlling agent
Moisturizing
Softening
Hair protection
Comedogenic rating [ 1 ]
EWG Rating [ 1 ]
CIR Rating [ A ]
Good for dry skin
Good for dry skin

Butylene Glycol is a very popular synthetic alcohol. It helps the product to absorb deeper and faster. It is also a solvent for other ingredients. As for the skin benefits, it helps to attract water and helps to make the skin softer.

Unlike many other “Glycols”, it is not harmful and that's why it is used in many products. It was approved by US FDA and US EPA for usage.

-- versus --

#4Dipropylene Glycol

Origin: chemical
Role: Fragrance ingredient, Masking, Solvent, Viscosity controlling agent
Moisturizing
EWG Rating [ 1 ]
CIR Rating [ A ]

Dipropylene Glycol is a solvent, emulsifier, viscosity decreasing, and masking agent. It helps to extract useful chemicals from plants and leaves, making natural components in a product more effective. It also helps to hydrate the skin. Considered safe for health and doesn't irritate the skin in common concentration.

Position 5

#5Acetyl Glucosamine

Origin: chemical
Role: Skin conditioning agent
Antioxidants
EWG Rating [ 1 ]
-- versus --

#5Tromethamine

Origin: chemical
Role: Buffering agent, Fragrance ingredient, Masking
EWG Rating [ 1 ]
CIR Rating [ A ]
Skin Signal
2023 - 2024

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Disclaimer: All the information on the website is not a medical advice. Visit a doctor if you have problems.

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