The INKEY List Salicylic Acid Exfoliating Scalp Treatment Versus Saturday Skin Scalp + Hair Strengthening Peptide Treatment

The INKEY List Salicylic Acid Exfoliating Scalp Treatment Versus Saturday Skin Scalp + Hair Strengthening Peptide Treatment

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Propanediol

Salicylic Acid

Betaine

Panthenol

PEG-40 Hydrogenated Castor Oil

Phenoxyethanol

Polyquaternium-37

Hexylene Glycol

Capryloyl Glycine

Citronellyl Methylcrotonate

Sodium Hydroxide

Ethylhexylglycerin

Xylitylglucoside

Trisodium Ethylenediamine Disuccinate

Water, Propanediol, Salicylic Acid, Betaine, Panthenol, PEG-40 Hydrogenated Castor Oil, Phenoxyethanol, Polyquaternium-37, Hexylene Glycol, Capryloyl Glycine, Citronellyl Methylcrotonate, Sodium Hydroxide, Ethylhexylglycerin, Xylitylglucoside, Trisodium Ethylenediamine Disuccinate

Butylene Glycol

Niacinamide

Octyldodeceth-16

Polysorbate 20

Tromethamine

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Menthol

Sodium Benzoate

Caffeine

Chlorella Vulgaris Extract

Glucose

Potassium Sorbate

Fructooligosaccharides

Fructose

Glycerin

1,2-Hexanediol

Menthyl PCA

Ethyl Menthane Carboxamide

Glycine Soja Seed Extract

Saccharomyces Cerevisiae Extract

Caprylic/Capric Triglyceride

Propylheptyl Caprylate

Hydrogenated Lecithin

Pentylene Glycol

Cocoglycerides

Phenyl Trimethicone

Cynanchum Atratum Extract

Octanediol

Caprylyl Glycol

Althaea Rosea Flower Extract

Dipotassium Glycyrrhizate

Serine

Glutamic Acid

Ceramide NP

Cholesterol

Stearic Acid

Aspartic Acid

Leucine

Sh-Oligopeptide-1

Sh-Polypeptide-1

Sphinganine

Phosphatidylcholine

Alanine

Lysine

Arginine

Tyrosine

Phenylalanine

Proline

Threonine

Valine

Isoleucine

Polyglyceryl-10 Laurate

Histidine

Cysteine

Methionine

Tocopherol

Acetyl Hexapeptide-8

Copper Tripeptide-1

Palmitoyl Pentapeptide-4

Tripeptide-1

Glycine Soja Oil

Alanine/Histidine/Lysine Polypeptide Copper Hcl

Hexapeptide-9

Palmitoyl Tripeptide-1

Sh-Oligopeptide-14

Sh-Oligopeptide-2

Sh-Polypeptide-45

Sh-Polypeptide-7

Sh-Polypeptide-9

Water, Butylene Glycol, Niacinamide, Octyldodeceth-16, Polysorbate 20, Tromethamine, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Menthol, Sodium Benzoate, Salicylic Acid, Caffeine, Chlorella Vulgaris Extract, Glucose, Panthenol, Potassium Sorbate, Fructooligosaccharides, Fructose, Glycerin, 1,2-Hexanediol, Menthyl PCA, Ethyl Menthane Carboxamide, Glycine Soja Seed Extract, Saccharomyces Cerevisiae Extract, Caprylic/Capric Triglyceride, Propylheptyl Caprylate, Hydrogenated Lecithin, Propanediol, Pentylene Glycol, Cocoglycerides, Phenyl Trimethicone, Cynanchum Atratum Extract, Ethylhexylglycerin, Octanediol, Caprylyl Glycol, Althaea Rosea Flower Extract, Dipotassium Glycyrrhizate, Serine, Glutamic Acid, Ceramide NP, Cholesterol, Stearic Acid, Aspartic Acid, Leucine, Sh-Oligopeptide-1, Sh-Polypeptide-1, Sphinganine, Phosphatidylcholine, Alanine, Lysine, Arginine, Tyrosine, Phenylalanine, Proline, Threonine, Valine, Isoleucine, Polyglyceryl-10 Laurate, Histidine, Cysteine, Methionine, Tocopherol, Acetyl Hexapeptide-8, Copper Tripeptide-1, Palmitoyl Pentapeptide-4, Tripeptide-1, Glycine Soja Oil, Alanine/Histidine/Lysine Polypeptide Copper Hcl, Hexapeptide-9, Palmitoyl Tripeptide-1, Sh-Oligopeptide-14, Sh-Oligopeptide-2, Sh-Polypeptide-45, Sh-Polypeptide-7, Sh-Polypeptide-9

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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.

Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.

There are two forms of panthenol: D and L.

D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.

Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):

Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.

This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.

Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.

This ingredient is also referred to as pro-vitamin B5.

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.

Salicylic Acid (also known as beta hydroxy acid or BHA) is a well-known ingredient for treating skin that struggles with acne and clogged pores. It exfoliates both the skin's surface and deep within the pores to help clear out buildup, control oil, and reduce inflammation.

Unlike AHAs (alpha hydroxy acids), salicylic acid is oil-soluble. This allows it to penetrate into pores which makes it especially effective for treating blackheads and preventing future breakouts.

Salicylic acid is also known for its soothing properties. It has a similar structure to aspirin and can calm inflamed or irritated skin, making it a good option for acne-prone skin that is also sensitive.

Concentrations of 0.5-2% are recognized by the U.S. FDA as an over-the-counter topical acne product.

It can cause irritation and/or dryness if one's skin already has a compromised moisture barrier, so it's best to focus on repairing that before introducing this ingredient into your routine.

While salicylic acid does not increase sun sensitivity, it’s still important to wear sunscreen daily to protect your skin.

If you are looking for the ingredient called BHA or Butylated Hydroxyanisole, click here.

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!

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