Skin science article
Dime Beauty TBT Serum Versus COSRX The 6 Peptide Skin Booster Serum
Dime Beauty TBT Serum Versus COSRX The 6 Peptide Skin Booster Serum This smoothing serum is formulated around Mandelic Acid and Niacinamide to refine skin texture and soften the look of wrinkles. This anti-aging serum is formulated around Niacinamide and Acety
Dime Beauty TBT Serum Versus COSRX The 6 Peptide Skin Booster Serum
This smoothing serum is formulated around Mandelic Acid and Niacinamide to refine skin texture and soften the look of wrinkles.
This anti-aging serum is formulated around Niacinamide and Acetyl Hexapeptide-8 to soften the look of wrinkles and strengthen the skin barrier.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Mandelic Acid
Propanediol
Niacinamide
Sodium Hyaluronate
Camellia Sinensis Extract
Vitis Vinifera Seed Extract
Phenoxyethanol
Ethylhexylglycerin
Rosa Canina Seed Oil
Nopalea Cochenillifera Extract
Punica Granatum Seed Oil
Helianthus Annuus Seed Oil
Persea Gratissima Oil
Sclerocarya Birrea Seed Oil
Vaccinium Vitis-Idaea Seed Oil
Moringa Oleifera Seed Oil
Bakuchiol
Nigella Sativa Seed Oil
Resveratrol
Gynostemma Pentaphyllum Leaf/Stem Extract
Lycium Barbarum Fruit Extract
Palmitoyl Tetrapeptide-10
Palmitoyl Tetrapeptide-7
Azadirachta Indica Seed Oil
Water, Mandelic Acid, Propanediol, Niacinamide, Sodium Hyaluronate, Camellia Sinensis Extract, Vitis Vinifera Seed Extract, Phenoxyethanol, Ethylhexylglycerin, Rosa Canina Seed Oil, Nopalea Cochenillifera Extract, Punica Granatum Seed Oil, Helianthus Annuus Seed Oil, Persea Gratissima Oil, Sclerocarya Birrea Seed Oil, Vaccinium Vitis-Idaea Seed Oil, Moringa Oleifera Seed Oil, Bakuchiol, Nigella Sativa Seed Oil, Resveratrol, Gynostemma Pentaphyllum Leaf/Stem Extract, Lycium Barbarum Fruit Extract, Palmitoyl Tetrapeptide-10, Palmitoyl Tetrapeptide-7, Azadirachta Indica Seed Oil
Dipropylene Glycol
Glycerin
Pentylene Glycol
1,2-Hexanediol
Acetyl Hexapeptide-8
Copper Tripeptide-1
Sh-Polypeptide-121
Dipeptide Diaminobutyroyl Benzylamide Diacetate
Oligopeptide-68
Palmitoyl Tripeptide-8
Allantoin
Acetyl Glucosamine
Serine
Alanine
Glycine
Threonine
Arginine
Proline
Betaine
Sodium PCA
Sodium Lactate
PCA
Glutamic Acid
Lysine Hcl
Tocopherol
Dextran
Glycine Soja Oil
Hydrogenated Lecithin
Ammonium Acryloyldimethyltaurate/Vp Copolymer
Polyacrylate Crosspolymer-6
Butylene Glycol
Xanthan Gum
Adenosine
Polyquaternium-51
Disodium EDTA
Citric Acid
Caprylyl Glycol
T-Butyl Alcohol
Potassium Sorbate
Sodium Oleate
Water, Dipropylene Glycol, Glycerin, Pentylene Glycol, 1,2-Hexanediol, Niacinamide, Acetyl Hexapeptide-8, Copper Tripeptide-1, Sh-Polypeptide-121, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Oligopeptide-68, Palmitoyl Tripeptide-8, Allantoin, Sodium Hyaluronate, Acetyl Glucosamine, Serine, Alanine, Glycine, Threonine, Arginine, Proline, Betaine, Sodium PCA, Sodium Lactate, PCA, Glutamic Acid, Lysine Hcl, Tocopherol, Dextran, Glycine Soja Oil, Hydrogenated Lecithin, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Polyacrylate Crosspolymer-6, Butylene Glycol, Xanthan Gum, Ethylhexylglycerin, Adenosine, Polyquaternium-51, Disodium EDTA, Citric Acid, Caprylyl Glycol, T-Butyl Alcohol, Potassium Sorbate, Sodium Oleate
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Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that:
The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure.
Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.
Niacinamide is a multitasking form of vitamin B3 that strengthens the skin barrier, reduces pores and dark spots, regulates oil, and improves signs of aging.
And the best part? It's gentle and well-tolerated by most skin types, including sensitive and reactive skin.
You might have heard of "niacin flush", or the reddening of skin that causes itchiness. Niacinamide has not been found to cause this.
In very rare cases, some individuals may not be able to tolerate niacinamide at all or experience an allergic reaction to it.
If you are experiencing flaking, irritation, and dryness with this ingredient, be sure to double check all your products as this ingredient can be found in all categories of skincare.
When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.
When you apply niacinamide to your skin, your body converts it into nicotinamide adenine dinucleotide (NAD). NAD is an essential coenzyme that is already found in your cells as "fuel" and powers countless biological processes.
In your skin, NAD helps repair cell damage, produce new healthy cells, support collagen production, strengthen the skin barrier, and fight environmental stressors (like UV and pollution).
Our natural NAD levels start to decline with age, leading to slower skin repair, visible aging, and a weaker skin barrier. By providing your skin niacinamide, you're recharging your skin's NAD levels. This leads to stronger, healthier, and younger looking skin.
Another name for vitamin B3 is nicotinamide. This vitamin is water-soluble and our bodies don't store it. We obtain Vitamin B3 from either food or skincare. Meat, fish, wheat, yeast, and leafy greens contain vitamin B3.
The type of niacinamide used in skincare is synthetically created.
Sodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.
In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.
Interestingly, the size of the molecule affects its behavior:
Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.
Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.
You'll typically see concentrations between 0.1-2% for this ingredient.
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. Remember to stay hydrated!