Use the following zoom and pan buttons to control the image that follows them
Tab through the images or use the previous or next buttons to navigate each product image
Highlights
Summary
The Ordinary's Multi-Peptide Serum for Hair Density is a lightweight serum for fuller, healthier-looking hair.
Benefits
- Provides a solution for visible hair thickness and fullness
- PH 4.75 - 5.75
Formulated Without
- Fragrance
- Alcohol
- Gluten
- Nuts
- Silicones
- Parabens
- Sulfates
- Mineral Oil
- Methylchloroisothiazolinone
- Methylisothiazolinone
- Animal Oils
- Coal Tar Dyes
- Formaldehyde
- Mercury
- Oxybenzone
Item 2578179
Apply a few drops or as needed once daily, ideally at bedtime, to clean, dry scalp. Massage into scalp thoroughly. This formula is a leave on/in treatment. Do not wash hair or scalp after application. If irritation occurs, cease use and consult a physician. Use only as directed on unbroken skin. Patch testing prior to use is advised. Refer to The Ordinary's in-depth guide to patch testing. Keep out of reach of children.
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.
We think you'll like
12 items
Use previous and next buttons to navigate the slides of the We think you'll like Product Carousel
Kenra Professional
Platinum Blow-Dry Spray
BaBylissPRO
Style/Switch Ionic Multi-Styler & Dryer
Redken
Extreme Length Shampoo For Longer, Stronger Hair
amika
Hydro Rush Intense Moisture Leave-In Conditioner
Similar items for you
12 items
Use previous and next buttons to navigate the slides of the Similar items for you Product Carousel
Moroccanoil
Moroccanoil Treatment Hair Oil
Sponsored products
12 items
Use previous and next buttons to navigate the slides of the Sponsored products Product Carousel
NUTRAFOL
Lightweight Scalp Serum for Thinning Hair
NUTRAFOL
Women's Balance 45+ Clinically Proven Hair Growth Supplement
NUTRAFOL
Women Clinically Proven Hair Growth Supplement
Virtue
Flourish Minoxidil 5% Foam for Hair Growth
Questions
Q&A
Showing 5 out of 46 Questions
- Q
Does helps your hair grow longer?
- Asked by Beauty stuff
- Official Answer By The Ordinary - Brand EngageHi there - Multi-Peptide Serum for Hair Density is designed to support the scalp. It helps give you thicker, denser, fuller-looking hair. The peptides in this serum have been shown to visibly stimulate new hair growth and also visibly strengthen the existing hair. We hope this helps!Was this answer helpful to you
- Q
Does this mean I have to wash my hair each night? I only wash my hair 1-2xs a week. Will that negate its magic.
- Asked by Laurief
- Official Answer By The Ordinary - Brand EngageHi there, we recommend massaging a few drops thoroughly onto a clean, dry scalp for optimal results. We hope this helps!Was this answer helpful to you
- Q
Can i used this serum once week at night with rosemary hair oil too or should the serum be used alone.
- Asked by fawn
- Official Answer By The Ordinary - Brand EngageUnfortunately, it is difficult for us to comment on the pairing of our products with those of other brands. We recommend consulting with your doctor/dermatologist, gradually incorporating one new product into your regimen at a time, and applying test patches first to see what works best for your skin.Was this answer helpful to you
- Q
Will this make my hair greasy? Do I apply it everyday?
- Asked by jadyn c
- Official Answer By The Ordinary - Brand EngageHi there, the formula is quite lightweight and shouldn't leave your hair feeling greasy. We'd recommend massaging a few drops thoroughly into a clean, dry scalp once daily, ideally at bedtime.Was this answer helpful to you
- Q
Can this product be used for eyebrows?
- Asked by Meeks
- Official Answer By The Ordinary - Brand EngageHi there. For eyebrows, we recommend our The Ordinary's Multi- Peptide Lash & Brow Serum as it has been specifically formulated for use on the brows.Was this answer helpful to you
Reviews
Review Snapshot
by PowerReviews
Ratings Distribution
Best Uses
Describe Yourself
Hair Type
Skin Type
Most Helpful Positive Review
Not just baby hairs - it works!!
This review is long overdue but given the rate of natural hair growth I wanted to ensure it wasn't just fuzz, baby hairs, or wishful thinking. As you can see I also have some psoriasis on my scalp before I began and still. This product had no affect, neither positive or negative, on the psoriasis ...
Most Helpful Critical Review
DECIEM will not disclose content concentration
This product is in large part marketed on the fact that it contains REDENSYL. There's some clinical evidence that REDENSYL promotes hair growth. However, DECIEM will not disclose the concentration of REDENSYL in this product, making it impossible to compare with alternative products containing the i...
873 results
I would purchase this product again and again.
Hair Type Very Curly Hair
Its an awesome product
Helped my hair stop falling out within a month
Hair Type Wavy Hair
Been losing hair like crazy due to some health issues but after a month of using this my hair loss has decreased significantly and even noticing new baby hairs all over
AMAZING
I just started using this serum two weeks ago. After applying it consistently 3-4 times a week, I can already tell the difference in density and health. Apply it directly on your snap and massage through. I dont feel like it makes my hair excessively greasy, as someone who already has somewhat greasy hair.. its nothing dry shampoo cant handle!! Reminder: you're not going to see growth specifically with this. This serum is to improve the health of your follicles and promote density. However if you think about it HEALTHY SCALP = HEALTHY GROWTH 😃
Never leave reviews, but needed to for this!
Hair Type Wavy Hair
Been using this serum since Dec 2025 & the biggest difference I'm seeing is that it has decreased hair fall out by almost half! Haven't noticed baby hairs but my hair is growing length wise! Also use it with the Abbey Yung method & my hair loves it
It works very well for me
I have natural type 4 hair. I have been battling with traction alopecia for about 10 years. And my hairline is filling in very nicely. I'm so pleased. My advice is to stop the high tension hairstyles ASAP. Use this on your edges. Keep your scalp clean have a good routine and massage your scalp as much as possible. Take your vitamins drink your water and have a good diet.