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🌱 Unlock your hair’s full potential—because your scalp deserves the best!
The Ordinary Multi-Peptide Serum for Hair Density is a lightweight, leave-in treatment formulated with six cutting-edge peptide complexes and plant-based extracts to promote thicker, fuller, and denser-looking hair. Designed for daily use, this vegan and cruelty-free serum supports scalp health without greasiness, making it a top-ranked hair regrowth tonic favored by thousands seeking visible hair vitality and new growth.



























| ASIN | B0DN6NHYX5 |
| Active Ingredients | lactic_acid, peptides |
| Age Range Description | Adult |
| Best Sellers Rank | #127 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #1 in Hair Regrowth Tonics |
| Brand | The Ordinary |
| Brand Name | The Ordinary |
| Customer Reviews | 4.0 out of 5 stars 1,861 Reviews |
| Hair Type | Coily |
| Item Form | Serum |
| Item Volume | 4 fluid ounces |
| Item Weight | 4 ounces |
| Manufacturer | DECIEM |
| Manufacturer Part Number | 769915194647 |
| Material Type Free | Aluminum Free |
| Model Number | 769915194647 |
| Number of Items | 2 |
| Recommended Uses For Product | Hair Density |
| Scent | Fragrance Free |
| Scent Name | Fragrance Free |
| Unit Count | 4 Fluid Ounces |
P**E
Scalp Health
I found out that a lot of oils feed the yeast that lives on your scalp which can make your dandruff worse and can be hard to wash out. This hydrates my scalp and doesn't leave it looking greasy or feeling greasy because of how light weight it is. The peptides are a huge bonus for hair growth as well. My hair gets thinner in times of stress, but this seems to be helping combat that.
E**N
Highly recommend!
First time mom dealing with postpartum hair loss and I swear by this . I use this every night along with taking a multivitamin ! Non greasy , has a little bit of a smell but not strong at all . I usually put it in a mini spray bottle for easier application and I feel like it doesn’t waste as fast , consistency is key ! Fit it into your routine and you’ll see results 🫶🏼 this is my 4th time purchasing it I highly recommend for anyone struggling with hair loss
A**R
Fixing My GLP-1 Hair Loss; So Many Baby Hairs!!! (Happy Tears)
I'm on a GLP-1 for weightloss and realized at the end of last year that my hair was definitely thinning (I spent months going back and forth: "I think it's thinning; maybe not; maybe? I'm not sure; yes, DEFINITELY thinner!"), so started researching how to fix it, and decided oral minoxidil was the way to go (I have cats, not risking their health with topical). I made an appointment with my doctor for the script (of course, had to wait a few months to get in), doc ran some tests, everything came back normal, then she said she didn't want to give me oral minoxidil because I'm of childbearing age with no children. So I had to go with plan B. That's where The Ordinary's hair serum comes in. And I am so glad I found it! This serum has fixed my hair loss! I have SO MANY BABY HAIRS!!! I started using it in April (bought during their anniversary sale), and now, in September, my hair is filling back in again. I did not see "instant" results, it actually caused a shed that I almost didn't make it through. The Ordinary's website says you may experience a slight shed; that's a lie, I experienced more than a "slight" shed! And my shed lasted longer than their website says it lasts. But I pushed through, kept using the product, and I'm so glad I did. My hair started shedding within a couple weeks of starting, and lasted for about a month (I had full on breakdowns in the bathroom a couple times, seeing how much thinner my hair was getting). A couple of months into use, I started seeing, what I thought, were seeds of new growth ("Is that new growth? Am I imagining that? Is that just hopeful-seeing new growth?") By the end of July, a solid three months into use, it was undeniable, I definitely had baby hairs! And my hairdresser had even commented that I was losing a lot less hair when she washed it. Now, in September, five months into use, my baby hairs range in length from one inch to four inches. I use more than a couple of drops of product, and I use it about five to six nights a week. A bottle lasts me about 6 weeks. The serum is thin and watery, and easy to apply. I have not had any irritation with it, and it doesn't leave my hair feeling greasy. But I wouldn't say it's unnoticeable in the hair, either. I can definitely feel that there is product in my hair after I've applied the serum (and it actually gives my roots a much-needed boost). I'm on my fourth bottle now, and plan to continue to use this product for the foreseeable future (just waiting for the next sale to buy in bulk). As is, this is an excellent value for the money. I know there are other products, with the same ingredients, charging four to five times what this one costs. I'm so glad I found this one before wasting my money on those others!
A**L
Baby hairs everywhere...
Ive been using this product for about 3 months and I cannot say it's going to filling in gaps, because I don't have gaps. But, Ive noticed an increase in baby hairs. What I have is less weight and thickness after Covid. Im 40 now and in perimenopause so thinner hair is to be expected, but Covid triggered massive hair loss that wasn't noticeable to anyone but me because I have (had) so much hair. My scalp aches now despite not wearing tight hair styles, I don't colour my hair, never had and I don't use heat on it offen. Yet my hair was looking like I misstreated it. This product, smoothe the scalp pain/inflammation and my hair feels more nourished. I don't know how else to explain it. Even with a dramatic result, I still want to keep using it. Today I received a replacement bottle because the bottle sent on autoship showed up half empty, if that happens to you just get it replaced like I did.
S**Y
A Solid Supporting Serum for Hair Density and Strength
I wanted to share a positive review of The Ordinary Multi-Peptide Serum for Hair Density. The photo attached shows my two-month results, achieved using this serum alongside other hair-growth products, including minoxidil. While this peptide serum won’t deliver dramatic results on its own, I truly believe it plays an important supporting role in a hair growth routine. The science behind the ingredients is solid. Peptides act as cellular messengers, encouraging scalp cells to repair, regenerate, and remain in the active growth phase longer. Copper peptides, in particular, help stimulate hair follicles, promote scalp health, and can even increase follicle size, often resulting in thicker strands and improved density. This serum also includes botanical complexes such as Redensyl, which support scalp circulation and help extend the growth phase. There are many other beneficial ingredients I won’t dive into here, or this review would get far too long but the bottom line is this serum is supportive, not miraculous. Results are gradual, but absolutely worthwhile with patience and consistency. I apply it about 30 minutes after using minoxidil each day, and I’ve found that routine works well for me. If you’re on a hair-growth journey, this is a great product to incorporate into your regimen.
A**R
Might be snake oil
I can't tell if this did anything. Calms frizz and is not irritating or expensive, but after using a full bottle faithfully I have not noticed any difference.
A**S
This product is worth every penny.
I am totally blown away by this serum. I bought it because my barber pointed out 2 areas where my hair was thinning. I began using it on my entire scalp. Apart from the thinning areas I have bald spots. One at my ear and another much larger one at the back caused by stress pulling which started 52 years ago. It's difficult to see progress where the hair is thinning but very easy to see the growing fuzz now clearly present in the once bald spots. I am nearly half way through the 2nd bottle and I have no intention of stopping. This product is worth every penny.
M**.
Works as intended.
I used this together with the Dove hair serum. I used this at night. I have telogen effluvium due to sudden weight loss due to GLP1. This is very easy to use with the dropper. Good value of money with how big it is with other hair serums but the dove one is cheaper than this one so I use this every wash day (3x a week) with microneedling. It did improve my results and helped my hair growth. But I feel like with its price I feel like I can be more consistent with the other hair serum that I can use everyday. Picture is my current hair growth after 3months. I still have shedding but milder than before. Im currently on my 2nd bottle of the ordinary multi peptide hair serum
A**A
Buen producto
Uno de los mejores productos con peptidos. A mi me mancha el pelo, aunque en descripción pone que no
M**L
Worth Trying for Thicker-Looking Hair
I’ve been using this serum for about a month, applying it twice a week, and I’m genuinely happy with the results so far. My hair looks a little fuller and healthier, and I’ve noticed some improvement in areas that seemed thinner before. The serum is lightweight, easy to apply, and doesn’t leave my scalp feeling greasy. I know hair growth takes time, so I wasn’t expecting instant results, but based on my experience, I think it’s a good value for the price and I’m looking forward to seeing the results with continued use.
D**O
Ottimo prodotto
Ottimo! Questo prodotto nutre i bulbi e aiuta a fare crescere i capelli più robusti.. anche quei capelli più fini e quasi invisibili diventano più grossi e scuri.. ciò fa riempire la cute di capelli.. lo consiglio
I**Q
Used 2 weeks
I have been using that for past two weeks. Lets hope for it to work because I have very badly damaged hair
H**P
Good one
Usually hair serums give me a bit of a headache, this one was good and felt reduction in hairfall too
Trustpilot
2 weeks ago
2 weeks ago