The Ordinary Multi-Peptide Serum for Hair Density Versus Eva NYC H2-Whoa! Hydrating 3-In-1 Scalp Serum

The Ordinary Multi-Peptide Serum for Hair Density Versus Eva NYC H2-Whoa! Hydrating 3-In-1 Scalp Serum

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

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

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

Alcohol Denat.

Sd Alcohol 40-B

Sodium Hyaluronate

Glycolic Acid

Oryza Sativa Extract

Althaea Officinalis Root Extract

Sh-Polypeptide-121

PPG-5-Ceteth-20

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Aminomethyl Propanol

1,2-Hexanediol

Ethylhexylglycerin

Parfum

Water, Alcohol Denat., Sd Alcohol 40-B, Propanediol, Glycerin, Sodium Hyaluronate, Glycolic Acid, Oryza Sativa Extract, Althaea Officinalis Root Extract, Sh-Polypeptide-121, PPG-5-Ceteth-20, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Aminomethyl Propanol, 1,2-Hexanediol, Ethylhexylglycerin, Phenoxyethanol, Parfum

Reviews

Be the first to review

Alternatives

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

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.

Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).

It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.

On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.

Another perk of this ingredient is that it stays functional across a wide pH range (3-10).

You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.

Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.

Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.

Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.

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.

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!

Similar Comparisons