Skin science article
Youth To The People Polypeptide-121 Future Cream with Peptides and Ceramides Versus The Ordinary Multi-Peptide Serum for Hair Density
Youth To The People Polypeptide-121 Future Cream with Peptides and Ceramides Versus The Ordinary Multi-Peptide Serum for Hair Density This anti-aging moisturizer is formulated around Hydrolyzed Hyaluronic Acid and Acetyl Tetrapeptide-9 to soften the look of wr
Youth To The People Polypeptide-121 Future Cream with Peptides and Ceramides Versus The Ordinary Multi-Peptide Serum for Hair Density
This anti-aging moisturizer is formulated around Hydrolyzed Hyaluronic Acid and Acetyl Tetrapeptide-9 to soften the look of wrinkles and hydrate skin.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Dicaprylyl Carbonate
Hydrolyzed Hyaluronic Acid
Trimethylolpropane Tricaprylate/Tricaprate
Tridecyl Trimellitate
Propanediol
Sh-Polypeptide-121
Polyglyceryl-3 Methylglucose Distearate
Panthenol
Niacinamide
Proline
Tocopheryl Acetate
Aloe Barbadensis Leaf Juice
Hydrolyzed Cannabis Sativa Seed Extract
Hydrolyzed Rice Protein
Hydrolyzed Pea Protein
Salvia Hispanica Seed Extract
Acetyl Tetrapeptide-11
Acetyl Tetrapeptide-9
Acetyl Tetrapeptide-2
Hibiscus Sabdariffa Fruit Extract
Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer
Hydrolyzed Linseed Seed
Castor Oil/Ipdi Copolymer
Ceramide AP
Ceramide NP
Cetearyl Alcohol
Cetearyl Glucoside
Glycerin
Hydrolyzed Sodium Hyaluronate
Coco-Caprylate/Caprate
Dilinoleic Acid
Benzyl Alcohol
Zingiber Officinale Root Extract
Bisabolol
Caprylyl Glycol
Carbomer
Dimethyl Isosorbide
Dipropylene Glycol
Erythritol
Ethylhexylglycerin
Glucose
1,2-Hexanediol
Trisodium Ethylenediamine Disuccinate
Glyceryl Stearate
Phytosphingosine
Polyacrylate Crosspolymer-6
Polysorbate 20
Caprylhydroxamic Acid
Potassium Sorbate
Glycine
Hydroxyacetophenone
Sodium Benzoate
T-Butyl Alcohol
Citric Acid
Sodium Citrate
Sodium Lactate
Triheptanoin
Xanthan Gum
Water, Dicaprylyl Carbonate, Hydrolyzed Hyaluronic Acid, Trimethylolpropane Tricaprylate/Tricaprate, Tridecyl Trimellitate, Propanediol, Sh-Polypeptide-121, Polyglyceryl-3 Methylglucose Distearate, Panthenol, Niacinamide, Proline, Tocopheryl Acetate, Aloe Barbadensis Leaf Juice, Hydrolyzed Cannabis Sativa Seed Extract, Hydrolyzed Rice Protein, Hydrolyzed Pea Protein, Salvia Hispanica Seed Extract, Acetyl Tetrapeptide-11, Acetyl Tetrapeptide-9, Acetyl Tetrapeptide-2, Hibiscus Sabdariffa Fruit Extract, Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer, Hydrolyzed Linseed Seed, Castor Oil/Ipdi Copolymer, Ceramide AP, Ceramide NP, Cetearyl Alcohol, Cetearyl Glucoside, Glycerin, Hydrolyzed Sodium Hyaluronate, Coco-Caprylate/Caprate, Dilinoleic Acid, Benzyl Alcohol, Zingiber Officinale Root Extract, Bisabolol, Caprylyl Glycol, Carbomer, Dimethyl Isosorbide, Dipropylene Glycol, Erythritol, Ethylhexylglycerin, Glucose, 1,2-Hexanediol, Trisodium Ethylenediamine Disuccinate, Glyceryl Stearate, Phytosphingosine, Polyacrylate Crosspolymer-6, Polysorbate 20, Caprylhydroxamic Acid, Potassium Sorbate, Glycine, Hydroxyacetophenone, Sodium Benzoate, T-Butyl Alcohol, Citric Acid, Sodium Citrate, Sodium Lactate, Triheptanoin, Xanthan Gum
Butylene Glycol
Caffeine
Biotinoyl Tripeptide-1
Acetyl Tetrapeptide-3
Larix Europaea Wood Extract
Pisum Sativum Extract
Scutellaria Baicalensis Root Extract
Triticum Vulgare Germ Extract
Glycine Soja Germ Extract
Trifolium Pratense Flower Extract
Camellia Sinensis Leaf Extract
Apigenin
Oleanolic Acid
Arginine
Calcium Gluconate
Zinc Chloride
Lactic Acid
Gluconolactone
Dextran
Maltodextrin
Hydroxyethylcellulose
Pentylene Glycol
PPG-26-Buteth-26
PEG-40 Hydrogenated Castor Oil
Sodium Metabisulfite
Phenoxyethanol
Chlorphenesin
Water, Propanediol, Butylene Glycol, Glycerin, Caffeine, Biotinoyl Tripeptide-1, Acetyl Tetrapeptide-3, Larix Europaea Wood Extract, Pisum Sativum Extract, Scutellaria Baicalensis Root Extract, Triticum Vulgare Germ Extract, Glycine Soja Germ Extract, Trifolium Pratense Flower Extract, Camellia Sinensis Leaf Extract, Apigenin, Oleanolic Acid, Arginine, Glycine, Calcium Gluconate, Zinc Chloride, Lactic Acid, Gluconolactone, Dextran, Maltodextrin, Hydroxyethylcellulose, Xanthan Gum, Pentylene Glycol, Dimethyl Isosorbide, Polysorbate 20, PPG-26-Buteth-26, PEG-40 Hydrogenated Castor Oil, Trisodium Ethylenediamine Disuccinate, Sodium Metabisulfite, Sodium Benzoate, Phenoxyethanol, Chlorphenesin
Reviews
Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Dimethyl Isosorbide (often shortened to DMI) is a sugar-derived solvent made from sorbitol. It's used to dissolve tricky ingredients and help them mix smoothly into a formula.
Many actives sit as gritty crystals when undissolved, so DMI swoops in to full dissolve them. This helps improve texture, stability, and how evenly an active is distributed.
It does have a penetration-enhancing reputation that is a bit more nuanced than marketing suggests; a cell study on human skin found that 10% DMI didn't significantly boost the permeation of Hydroquinone, Salicylic Acid, or Octadecenedioic Acid compared to controls (though it did improve their solubility in the formula itself).
Typical usage concentrations usually range from 1-10% depending on the formula's needs; this ingredient is also well tolerated at these levels.
Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
Just know very high concentrations (>40%) can feel tacky in low humidity.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Glycine is the smallest amino acid and a key building block of collagen. It's part if your skin's Natural Moisturizing Factor (NMF), or the water-loving molecules in your outermost layer of skin (stratum corneum) that keeps everything hydrated and happy.
A study from 2022 found that an amino acid complex featuring taurine, arginine, and glycine significantly reduced skin irritation, improved redness, and accelerated the skin repair process.
Polysorbate 20 is a gentle, water-soluble emulsifier and mild surfactant. It stops oil and water from separating to keep your formulas blended and stable.
It also acts as a mild penetration enhancer by helping active ingredients absorb slightly better.
The common safety discussion around this ingredient involves a manufacturing byproduct called 1,4-dioxane.
Trace amounts can form during production but the EU's Scientific Committee on Consumer Safety has concluded that levels at/below 10 ppm in finished products are safe (commercial products consistently fall within acceptable margins).
True allergic reactions are uncommon and the CIR Expert Panel has confirmed this ingredient to be safe as used in cosmetics.
Because it is derived from lauric acid, it may not be fungal acne safe.
Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
It’s often used to:
Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.
Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.
Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.
It is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.
Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.
We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.
Trisodium Ethylenediamine Disuccinate is used to help stabilize a product.
It is a chelating agent, meaning it helps prevent metal ions from binding to other ingredients. This prevents unwanted reactions in products. Metal ions can come into a product via the water ingredient. They are found in trace amounts and are not known to be harmful.
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!
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.