Somethinc DIAMOND PHYTO Stem Cell Serum Versus COSRX The Niacinamide 15 Serum
Updated on June 28, 2024
Overview
What they are
These products are both reef safe serums. They have a total of 4 ingredients in common
Suited For
They're both likely to be good for brightening skin
Free From
They both do not contain any harsh alcohols, common allergens, oils, parabens or sulfates
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
Somethinc DIAMOND PHYTO Stem Cell Serum 27 ingredients
COSRX The Niacinamide 15 Serum 15 ingredients
At a glance
Click on any of the items below to learn more
Somethinc DIAMOND PHYTO Stem Cell Serum 27 ingredients
COSRX The Niacinamide 15 Serum 15 ingredients
Notable Ingredients
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Benefits
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Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Benefits
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Ingredients Side-by-side
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
Ammonium Polyacryloyldimethyl Taurate is a polymer made from ammonium salts. It helps add stability and texture to a product.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Hydrogenated Lecithin is created from the hydrogenation of lecithin. Hydrogenation is a chemical reaction between molecule hydrogen and another element.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
Polymethylsilsesquioxane is a silicone used as a film forming agent.
Polyglyceryl-4 Caprate comes from Capric Acid and Polyglycerin-4. It is an emulsifier.
Aroma refers to an ingredient, or mixture of ingredients, that impart or mask a flavor.
BHT is a synthetic antioxidant. As an antioxidant, it helps your body fight off free-radicals. Free-radicals are molecules that may damage your skin cells.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
Lecithin is a term for a group of substances found in plants, animals, and humans. They are made up of mixture of fatty acids. These fatty acids usually are a mixture of phosphoric acid's choline ester connected to stearic, oleic, and palmitic acids. Most lecithins are created from plant ingredients scuh as sunflower.
Glyceryl Caprylate comes from glycerin and caprylic acid, a fatty acid from coconut.
Chlorella Vulgaris Extract comes from the microalga, Chlorella vulgaris. It is hydrating and contains antioxidants. Studies also show Chlorella Vulgaris may help in rebuilding collagen and elastin.
Not safe for Fungal Acne
Heptapeptide-15 Palmitate isn't fungal acne safe and is a peptide.
Water, Ammonium Polyacryloyldimethyl Taurate, Butylene Glycol, Hydrogenated Lecithin, Potassium Methoxysalicylate, Phenoxyethanol, Dipentaerythrityl Hexa C5-9 Acid Esters, Neopentyl Glycol Diheptanoate, Polymethylsilsesquioxane, Polyglyceryl-4 Caprate, Aroma, Benzotriazolyl Dodecyl P-Cresol, BHT, Disodium EDTA, Ethylhexylglycerin, Malus Domestica Fruit Cell Culture Extract, Xanthan Gum, Glycerin, Caprylyl Glycol, Lecithin, Diamond Powder, Glyceryl Caprylate, Lactic Acid/Glycolic Acid Copolymer, Phenylpropanol, Chlorella Vulgaris Extract, Polyvinyl Alcohol, Heptapeptide-15 Palmitate
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
Pentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.
6 Benefits
Niacinamide has emerged as an all-star ingredient due to its many benefits.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Acetyl Glucosamine is an antioxidant and humectant. It is a form of Vitamin C.
1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth. 1,2-Hexanediol also helps the skin retain moisture as a humectant.
Zinc PCA (or "zinc salt") differs slightly from zinc itself. PCA stands for pyrrolidone carboxylic acid. However, Zinc PCA comes from zinc.
Trehalose is a disaccharide made of two glucose molecules (glucose is sugar!). Trehalose is used to help moisturize skin. It also has antioxidant properties.
Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
Allantoin plays a role in soothing and moisturizing the skin. Because of this, it is often added to products with strong active ingredients.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
Sodium Phytate is the synthetic salt form of phytic acid. Phytic acid is an antioxidant and can be found in plant seeds.
4 Benefits 2 Concerns
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
Antioxidant 4 Benefits May cause irritation
Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterButylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.
Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.
Learn more about Xanthan GumIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Somethinc DIAMOND PHYTO Stem Cell Serum 27 ingredients
COSRX The Niacinamide 15 Serum 15 ingredients
Reviews
Here's what our community thinks
Somethinc DIAMOND PHYTO Stem Cell Serum 27 ingredients
COSRX The Niacinamide 15 Serum 15 ingredients
ChienYun_CY
HG acne scar serum
Initially, this serum had helped fade away most of my old acne scars. After while, I thought it didn't do anything more for my...
HG acne scar serum
Initially, this serum had helped fade away most of my old acne scars. After while, I thought it didn't do anything more for my new acne growth. So I ditched this serum for about 3 months and tried other new niacinamide products. I REGRET it. Soon after, I got more and more whiteheads and acne. My skin texture becomes uneven and dry. The new acne scars couldn't fade away at all. I decided to repurchase this serum, and almost immediately, my scars cleared and had reduced inflammation on new cystic acne. It also helped to control sebum production and I have lesser acne growth. One of the products I cannot live without.
