Multi-Peptide Serum for Hair Density by The Ordinary
by The Ordinary · hair_care
Editor's Take
The crowded label earns its keep: caffeine, four peptide-botanical complexes, and proper follicle delivery give this budget serum more substance than most of its shelfmates.
Four-pillar formula scores
- Performance: 8.8 / 10
- Innovative Ingredients: 8.5 / 10
- Clean Standards: 7.5 / 10
- Formula Sustainability: 8.6 / 10
The Verdict
Among affordable density serums, this is unusually well stocked, with caffeine leading a strategy spanning Redensyl™, Capixyl™, Procapil™, and Baicapil™. Dimethyl Isosorbide gives those peptides and botanicals a credible route to follicle exposure rather than leaving them as label decoration. The water-based formula scores well environmentally, while conventional glycols, ethoxylated solubilizers, and preservatives keep it outside stricter clean standards without making it a red flag. Worth consistent use for supporting fuller-looking hair, with the sensible expectation that a cosmetic serum is not a guaranteed regrowth treatment.
What are the key ingredients in The Ordinary Multi-Peptide Serum for Hair Density?
The formula leads with Aqua, Propanediol, Butylene Glycol, Glycerin, Caffeine, Biotinoyl Tripeptide-1, as listed in the full INCI below. Under the Formulation Architecture Model™, that peptide and support system drives an Innovative Ingredients score of 8.5 / 10, read from ingredient position and pairing across the finished formula.
Full INCI list
Aqua (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