Skin science article
Dr.ForHair Folligen Treatment Versus The Ordinary Multi-Peptide Serum for Hair Density
Dr.ForHair Folligen Treatment Versus The Ordinary Multi-Peptide Serum for Hair Density What's inside Key Ingredients Benefits Concerns Ingredients Side-by-side Water Onsen-Sui Dipropylene Glycol Caprylic/Capric Triglyceride Cetearyl Alcohol Cetyl Alcohol Stear
Dr.ForHair Folligen Treatment Versus The Ordinary Multi-Peptide Serum for Hair Density
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Onsen-Sui
Dipropylene Glycol
Caprylic/Capric Triglyceride
Cetearyl Alcohol
Cetyl Alcohol
Stearyl Alcohol
Brassicamidopropyl Dimethylamine
Behentrimonium Chloride
Behentrimonium Methosulfate
Parfum
Behenyl Alcohol
Glyceryl Stearate
Steartrimonium Chloride
Quaternium-33
Alcohol
Pentylene Glycol
Propylene Glycol
Isopropyl Myristate
Panthenol
Propanediol
Zinc Pyrithione
Citric Acid
Butylene Glycol
Salicylic Acid
Menthol
Polyquaternium-10
Guar Hydroxypropyltrimonium Chloride
Caprylyl Glycol
Lanolin Acid
Ethylhexylglycerin
Disodium EDTA
Laurdimonium Hydroxypropyl Hydrolyzed Wheat Protein
Cnidium Officinale Rhizome Extract
Panax Ginseng Root Extract
Sodium Citrate
Hydrolyzed Soy Protein
Hydrolyzed Keratin
Zinc Chloride
Sorbitol
Belamcanda Chinensis Root Extract
Swertia Japonica Extract
Glycerin
Cocos Nucifera Oil
Gardenia Taitensis Flower
Hydrolyzed Rye Phytoplacenta Extract
Glycine
Paeonia Suffruticosa Root Extract
Serine
Glutamic Acid
Nymphaea Alba Flower Extract
Serenoa Serrulata Fruit Extract
Hibiscus Sabdariffa Flower Extract
Aspartic Acid
Leucine
Fagraea Berteroana Flower Extract
Cananga Odorata Flower Extract
Alanine
Lysine
Arginine
Tyrosine
Phenylalanine
Urea
Lecithin
Polysorbate 80
Threonine
Proline
Valine
Isoleucine
1,2-Hexanediol
Ceramide NP
Histidine
Methionine
Cysteine
Cysteic Acid
Sodium Succinate
Plumeria Alba Flower Extract
Plumeria Rubra Flower Extract
Biotin
Tocopherol
Water, Onsen-Sui, Dipropylene Glycol, Caprylic/Capric Triglyceride, Cetearyl Alcohol, Cetyl Alcohol, Stearyl Alcohol, Brassicamidopropyl Dimethylamine, Behentrimonium Chloride, Behentrimonium Methosulfate, Parfum, Behenyl Alcohol, Glyceryl Stearate, Steartrimonium Chloride, Quaternium-33, Alcohol, Pentylene Glycol, Propylene Glycol, Isopropyl Myristate, Panthenol, Propanediol, Zinc Pyrithione, Citric Acid, Butylene Glycol, Salicylic Acid, Menthol, Polyquaternium-10, Guar Hydroxypropyltrimonium Chloride, Caprylyl Glycol, Lanolin Acid, Ethylhexylglycerin, Disodium EDTA, Laurdimonium Hydroxypropyl Hydrolyzed Wheat Protein, Cnidium Officinale Rhizome Extract, Panax Ginseng Root Extract, Sodium Citrate, Hydrolyzed Soy Protein, Hydrolyzed Keratin, Zinc Chloride, Sorbitol, Belamcanda Chinensis Root Extract, Swertia Japonica Extract, Glycerin, Cocos Nucifera Oil, Gardenia Taitensis Flower, Hydrolyzed Rye Phytoplacenta Extract, Glycine, Paeonia Suffruticosa Root Extract, Serine, Glutamic Acid, Nymphaea Alba Flower Extract, Serenoa Serrulata Fruit Extract, Hibiscus Sabdariffa Flower Extract, Aspartic Acid, Leucine, Fagraea Berteroana Flower Extract, Cananga Odorata Flower Extract, Alanine, Lysine, Arginine, Tyrosine, Phenylalanine, Urea, Lecithin, Polysorbate 80, Threonine, Proline, Valine, Isoleucine, 1,2-Hexanediol, Ceramide NP, Histidine, Methionine, Cysteine, Cysteic Acid, Sodium Succinate, Plumeria Alba Flower Extract, Plumeria Rubra Flower Extract, Biotin, Tocopherol
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
Calcium Gluconate
Lactic Acid
Gluconolactone
Dextran
Maltodextrin
Hydroxyethylcellulose
Xanthan Gum
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
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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.
Arginine is a semi-essential amino acid. This just means our bodies can product a bit on its own, but sometimes needs a little boost from food sources.
It is a part of 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.
Here's an interesting thing about Arginine: your skin converts it into urea through the Krebs-Henseleit urea cycle. Urea is one of the most effective humectants your skin naturally produces.
A clinical study showed applying 2.5% arginine hydrochloride to atopic dermatitis skin showed significant urea levels in the stratum corneum and improved moisture in just four weeks.
Arginine is also a precursor to nitric oxide; nitric oxide improves microcirculation and supports wound healing and collagen synthesis.
One study found that an amino acid complex containing Arginine reduced skin irritation, improved hydration, and accelerated skin repair in clinical / in-vivo studies.
Arginine itself is an amino acid and not a fatty acid, oil, or ester. On its own, it's not a direct food source for Malassezia, or the yeast that causes fungal acne.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.
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.
Pentylene Glycol (1,2-pentanediol) is a multitasking little diol with three main roles in a formula:
Research on alkanediols (the family pentylene glycol belongs to) show they work by disrupting microbial cell membranes. This disruption helps the primary preservative system in a product work more effectively at lower doses.
On the safety side, the Cosmetic Ingredient Review Expert Panel has concluded this ingredient to be safe as used in current cosmetic practices + concentrations.
Typical use levels in a formula run about 1-5%.
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!
Zinc chloride is a white crystalline compound. You'll most likely see it in personal care products such as mouthwashes, skincare, hair conditioners, and bath products.