This product contains acids (gluconolactone 0.25% - 0.50% and lactic acid 0.30% - 0.50%). Their concentration is low, and they will not have a strong exfoliating effect. Instead, they work to support the skin natural acid mantle and to attract water (as humectants). PHAs (gluconolactone) especially are great for improving skin hydration. They might be even able to stimulate the production of skin's natural humectants and support the healthy skin microbiome.
Peptides (acetyl tetrapeptide-3 1.70% - 2.00% and biotinoyl tripeptide-1 1.90% - 2.40%). There are many different kind of Peptides and they are naturally present in our skin. They all are a combination of aminoacids. Some of them work as natural antibiotics, promote wound-healing and production of collagen. The science is still not settled on how effective Peptides are in skincare, but it is very likely that they have a benefit. They might help restore the skin barrier and fight the signs of aging. At the very least, Peptides work as humectants: they attract water to the upper layer of the skin and improve its hydration.
Humectants (dextran 0.25% - 0.50%, glycine 0.40% - 0.60%, arginine 0.45% - 0.65% and glycerin 3.00% - 3.70%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

About the brand

According to Cruelty-Free Kitty "The Ordinary" is cruelty free, but its parent company is not.

What can the product work for?

Anti-aging

This product contains biotinoyl tripeptide-1. This ingredient might be able to help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness, but there is not enough evidence that it actually works.

biotinoyl tripeptide-1 1.9% - 2.4%

Irritation risk:

Concentration: Effectiveness: MEDIUM

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

acetyl tetrapeptide-3 1.7% - 2%

Irritation risk:

Concentration: Effectiveness: LOW

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

camellia sinensis leaf extract 0.5% - 0.75%

Irritation risk:

Concentration: Effectiveness: LOW

Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation

Moisturizing

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. The following ingredients in this product do the job: arginine, dextran.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: arginine, pentylene glycol.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: acetyl tetrapeptide-3, biotinoyl tripeptide-1

glycine 0.4% - 0.6%

Irritation risk:

Concentration: Effectiveness: HIGH

Helps to attract water to the upper layer of the skin and can help restore the skin barrier function

acetyl tetrapeptide-3 1.7% - 2%

Irritation risk:

Concentration: Effectiveness: HIGH

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

glycerin 3% - 3.7%

Irritation risk:

Concentration: Effectiveness: HIGH

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

Anti-oxidation

This product contains antioxidants (camellia sinensis leaf extract) that might be able to help neutralize free radicals in skin to lessen the damage it gets from the UV light (sun). There is not enough evidence to confirm their effectiveness in skin though.

camellia sinensis leaf extract 0.5% - 0.75%

Irritation risk:

Concentration: Effectiveness: MEDIUM

caffeine 2.3% - 2.8%

Irritation risk:

Concentration: Effectiveness: LOW

Might be helpful in neutralizing free radicals. Can have a dehydration effect that might somewhat decrease the look of puffy eyes

scutellaria baicalensis root extract 0.95% - 1.15%

Irritation risk:

Concentration: Effectiveness: LOW

A plant extract that might contain a compound baicalin that could be helpful in neutralizing free radicals and reducing inflammation in skin. The baicalin concentration in skincare products is often too low for an effective action. Can be used for its fragrant properties

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Ingredients & concentrations

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Key Actives

camellia sinensis leaf extract 0.5% - 0.75%

Irritation risk:

Works for: Anti-oxidation, Antibacterial, Anti-aging, Anti-blemish, Evens skin tone, Moisturizing

gluconolactone 0.25% - 0.5%

Irritation risk:

Works for: Evens skin tone, Anti-aging, Moisturizing, Exfoliation, Anti-oxidation, Anti-blemish

A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals

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Potential irritants

scutellaria baicalensis root extract 0.95% - 1.15%

Irritation risk:

Works for: Moisturizing, Antibacterial, Anti-inflammatory, Reduces irritation, Anti-oxidation

trifolium pratense flower extract 0.55% - 0.8%

Irritation risk:

Works for: Anti-oxidation

Red clover flower extract. Can contain anti-oxidants but also potential irritant compounds

Comodogenic ingredients

triticum vulgare germ extract 0.75% - 1.1%

Irritation risk: Comedogenicity: High

Works for: Moisturizing, Anti-oxidation

Plant extract that might have moisturizing properties. Avoid if you suffer from wheat or gluten intolerance

All ingredients

water 45% - 55%

Irritation risk:

Plain old water

propanediol 5% - 6.2%

Irritation risk:

Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin

butylene glycol 3.8% - 4.7%

Irritation risk:

Works for: Moisturizing

Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin

Ingredient list view

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

	The Ordinary - Multi-Peptide Serum for Hair Density	Maya Chia - Power Fol Multi-Correctional Eyelash Eyebrow Growth Serum	Thrive Causemetics - Timeless Ambition™ Power 10-Peptide Sculpting Serum	USOLAB - Bio Brightening Bleaching Ampoule	Grow Gorgeous - Growth Serum Intense	PSA Skin - The Most: Hyaluronic Super Nutrient Hydration Serum	NuFace - Firming + Radiant Super Peptide Booster Serum	cocokind - ceramide barrier serum	Jordan Samuel - Hydrate Facial Serum	Skingredients - Skin Veg Hydrating Hyaluronic Acid Serum	Luzern Laboratories - Luzern WE3 Triple Action Serum Wrinkle Corrector
Price
WIMJ similarity score		47%	45%	44%	43%	42%	42%	41%	41%	41%	41%
Key ingredients	biotinoyl tripeptide-1 acetyl tetrapeptide-3 +9 more	Common: biotinoyl tripeptide-1 acetyl tetrapeptide-3 +3 more Other: myristoyl pentapeptide-17 panthenol +6 more	Common: gluconolactone glycerin +1 more Other: acetyl hexapeptide-1 tripeptide-1 +10 more	Common: acetyl tetrapeptide-3 biotinoyl tripeptide-1 +3 more Other: hexapeptide-11 copper tripeptide-1 +38 more	Common: acetyl tetrapeptide-3 gluconolactone +7 more Other: allantoin hydrolyzed hyaluronic acid +1 more	Common: glycerin Other: madecassoside panthenol +10 more	Common: glycerin Other: niacinamide palmitoyl tetrapeptide-7 +7 more	Common: gluconolactone glycerin +1 more Other: caprooyl phytosphingosine caprooyl sphingosine +11 more	Common: gluconolactone glycerin Other: sodium hyaluronate	Common: gluconolactone glycerin Other: camellia oleifera leaf extract sodium hyaluronate +1 more	Common: glycerin Other: niacinamide acetyl octapeptide-3 +7 more
Irritancy	IRRITANCY MEDIUM	IRRITANCY MEDIUM	IRRITANCY LOW	IRRITANCY MEDIUM	IRRITANCY HIGH	IRRITANCY LOW	IRRITANCY LOW	IRRITANCY LOW	IRRITANCY LOW	IRRITANCY LOW	IRRITANCY LOW
Potential Irritants	trifolium pratense flower extract Has skin benefit? scutellaria baicalensis root extract Has skin benefit? +11 more	panax ginseng root extract Has skin benefit? tilia tomentosa bud extract Has skin benefit? +10 more	ethylhexylglycerin Has skin benefit? caprylhydroxamic acid Has skin benefit? +5 more	gardenia florida fruit extract Has skin benefit? citrus limon fruit extract Has skin benefit? +4 more	trifolium pratense flower extract Has skin benefit? cinnamyl alcohol Has skin benefit? +17 more	potassium sorbate Has skin benefit? hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer Has skin benefit? +6 more	copper gluconate Has skin benefit? citric acid Has skin benefit? +7 more	pullulan Has skin benefit? lactic acid Has skin benefit? +6 more	ethylhexylglycerin Has skin benefit? salix nigra bark extract Has skin benefit? +4 more	potassium sorbate Has skin benefit? citric acid Has skin benefit? +10 more	salix alba bark extract Has skin benefit? potassium sorbate Has skin benefit? +2 more
All ingredients	water Has skin benefit? propanediol Has skin benefit? +34 more	aloe barbadensis leaf juice Has skin benefit? water Has skin benefit? +30 more	water Has skin benefit? glycerin Has skin benefit? +30 more	citrus limon fruit extract Has skin benefit? glycerin Has skin benefit? +64 more	water Has skin benefit? butylene glycol Has skin benefit? +42 more	water Has skin benefit? glycerin Has skin benefit? +28 more	water Has skin benefit? glycerin Has skin benefit? +30 more	aloe barbadensis leaf juice Has skin benefit? propanediol Has skin benefit? +29 more	water Has skin benefit? glycerin Has skin benefit? +14 more	water Has skin benefit? glycerin Has skin benefit? +23 more	water Has skin benefit? glycerin Has skin benefit? +22 more

PRODUCT REVIEW

The Ordinary Multi-Peptide Serum for Hair Density

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About the brand

What can the product work for?

Works for

Anti-aging

Moisturizing

Anti-oxidation

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All ingredients

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