Unboxing The Ordinary Multi-Peptide Hair Serum – Does it work?
A quick look at The Ordinary Multi-Peptide Hair Serum
- 53% love it
- 43% say they have seen an improvement
- 38% will repurchase it
- This currently scores 4.4/5 on the Deciem website.
- Makes hair look thicker, denser, fuller & healthier
- This product is 60ml
- PAO (period after opening) is 12 months
- Prices: Check the price in your currency here
The Ordinary Multi-Peptide Hair Density Serum Reviews

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The Ordinary Multi-Peptide Hair Serum – Everything you need to know
- What is the multi-peptide hair serum, and what does it do?
- When do I use it?
- How do I use it?
- Reviews of The Ordinary Hair Serum
- PAO
- Texture, smell and colour
- FAQs of The Ordinary Hair Serum
- Authentic Hair Serum by The Ordinary
- Video of the unboxing of the multi-peptide hair serum
The Ordinary Hair Serum
With The Ordinary Multi-Peptide Hair Serum, there’s only one question everyone wants to be answered. Does it really work?
The truth is that some people absolutely love it and say it works, whilst others will say it did absolutely nothing. For those who say it did nothing – were they consistent? Did they really use it as instructed and persevere with it? I could easily say it didn´t work, but the truth is I haven´t been consistent. I also want you to take care when looking at the amazing reviews. I´ve seen some really good before & after photos of The Ordinary Multi-Peptide hair serum, but equally, if you comb/brush hair a little different, you could get the “fuller” look.
Before you buy this – ask yourself. Will I be consistent when using this? If the answer is no, I really don´t think you should buy this.
What is The Ordinary Multi-Peptide Hair Serum, and what does it do?
The Multi-Peptide Serum for Hair Density – The Ordinary says this is a concentrated serum for hair that looks thicker, denser, fuller and healthier.
When and how do I use The Ordinary hair serum?
- Apply a few drops (2/3) once a day and ideally at bedtime
- It should be applied to a clean, dry scalp.
- Massage the serum into the scalp thoroughly and do not rinse out.
- Patch testing is always recommended.
Does The Ordinary Multi-Peptide Serum for Hair Density Work?
43% say it does.

What is the PAO of the hair serum?
The period after opening is 12 months
What is the texture, smell and colour of The Ordinary Multi-Peptide Hair Serum?
The colour is clear, and the product is a lot thinner than I expected. You´re best aiming the pipet directly onto your scalp.
My personal thoughts on the Multi-Peptide Hair Serum
I honestly cannot say if it worked or not because I haven´t been consistent. When I used this in the evening on clean, dry hair, my hair look unwashed and greasy the next day, meaning I had to wash it again.
The Ordinary Multi-Peptide Hair Serum Reviews
The Ordinary Hair Serum currently scores a 4.4/5 on the official Deciem website. Below are just some of the reviews from the Deciem Chat Room Instagram post. You can read more here and talk directly with the people leaving the reviews.
I don’t have hair loss, but my hair is very fine, and I find that the multi-peptide serum does give volume and makes hair look healthy.
The Ordinary Multi-Peptide Hair Serum – I started using it on my brows, and bald patches to show some new hair growth. My brows are looking so much fuller!
I liked this Ordinary Multi-Peptide Hair Serum! It works amazing if you have an itchy or irritated scalp. It balanced it out and gave me a few new baby hairs as well.
I wasn’t consistent, and it worked for me. Had I not taken before and after photos, I wouldn’t have believed myself.
The Ordinary Multi-Peptide Hair Serum has totally worked for me. I run the tip down each side of my head and some at the crown and then brush with a massaging brush. I have noticeable hair growth.
The Ordinary Multi-Peptide Hair Serum FAQS
Some of these questions have been answered by The Ordinary on social media
Will The Multi-Peptide Hair Density Serum help with hair loss? This may help with the appearance of thin hair.
Hair will “look thicker” or be thicker? There’s a difference. The peptides in Multi-peptide Hair serum have been shown to visibly stimulate new hair growth and also visibly strengthen the existing hair.
Should I use The Ordinary Hair Serum every night? This depends on your personal preference.
Every time I use The Ordinary Hair Serum, I get a lot of acne, and my scalp gets itchy. Is that normal? Kindly note that if you are experiencing a burning sensation or what might feel like an irritation to the skin, please discontinue use and rinse the product off the skin immediately.
Is The Ordinary Hair Serum for Density safe to use if u have a scalp condition? We recommend consulting your physician.
Can you use the Hair Serum on wet hair? Applying it to dry hair makes my hair go greasy. For best results, we suggest applying it to a clean, dry scalp
Can I use this on my eyebrows? This product is intended to be used on the scalp. If you would like to use it in other areas, this is your choice, and we would advise that you use discretion in doing so based on your experience and best judgement.
More FAQS about The Ordinary Hair Serum
Would The Ordinary Hair Serum help re-growth from postpartum hair loss? This may help hair appear thicker and fuller
Is The Ordinary Hair Serum suitable for pregnancy/breastfeeding? We do not test our products on pregnant/nursing women. Hence, we cannot provide any confirmation on that aspect. It is best to consult your physician in advance before use just to be on the safe side.
Does the Multi-Peptide Hair Serum work on afro hair? Yes, it is great for all hair types.
What is the pH level of The Ordinary Hair Serum? The Ordinary Multi-Peptide Serum for Hair Density has a pH of 4.75-5.75.
Will The Ordinary Hair Serum prevent hair fallout? Any hair condition would benefit from the visible density improvements this product would offer. There are a number of studies discussing caffeine with respect to hair loss. While we don’t position this product as a hair loss treatment, we encourage you to research the studies of the technologies used in this formula in this regard.
More faqs about The Ordinary Multi-Peptide Hair Serum
Would The Ordinary Multi-Peptide Hair Serum help with scalp psoriasis? None of our products can be considered medical treatments for psoriasis. You may wish to discuss suitable treatments for persistent signs of psoriasis with your physician or dermatologist.
Is The Ordinary hair serum ok to use on bleached hair? Yes, this product improves the tensile strength of hair strands.
How many drops do you use of the hair serum? We generally recommend 2-3 drops
Does The Ordinary hair serum stimulate growth? The peptides in Multi-peptide Hair serum have been shown to visibly stimulate new hair growth and also visibly strengthen the existing hair.
How long does a bottle last? Depending on the frequency of use, a bottle may last 4-6 months or more.
Does it have any side effects? All DECIEM products undergo a thorough safety assessment before hitting the market. Each ingredient is reviewed against current scientific literature and strict global regulations to ensure they are safe and compliant for topical application
How many times a week should I use the hair serum? It may be used nightly!
Can The Ordinary Multi-Peptide Hair Serum be used alongside Minoxidil? We have not tested The Ordinary Multi-Peptide Serum for Hair Density with other non-DECIEM hair growth products. We cannot provide any information with certainty in that regard.
Is this serum suitable for an oily scalp? Absolutely!
Is it safe for colour-treated hair? Yes
Final Thoughts on The Ordinary Multi-Peptide Hair Serum

- 53% of the Deciem Addicts love it
- 43% have seen an improvement
- 38% will repurchase it
- Scores 4.4/5 on the Deciem website currently
Some of the reviews on this product are amazing, so I am a little surprised with these results, but it´s what the Deciem Addicts voted for.
Compared to the price of many hair products out there promoting the same benefits, I think this is well worth trying, but you must be consistent!
The Ordinary Hair Serum Box, Bottle & Serum
For anyone worried if they have bought a counterfeit product, here are photos of The Ordinary Multi-Peptide box, bottle and serum purchased from Deciem. The serum is quite watery. It rubs into the skin on the back of my hand quite nicely. It absorbs very well and leaves it feeling smooth, not oily.
Where to buy The Ordinary Multi-Peptide Hair Serum
Buy from The Ordinary or one of the many authorised stockists online.
Other The Ordinary hair products
Hair Loss
When it comes to hair loss, there could be many reasons. It’s best to check with a professional and maybe have your blood checked. I lost a lot of hair after surgery and when I had anaemia. It slowly grew back once my body recovered. I picked up some great tips from the Curly Girl Method (Facebook Groups), using some of the recommended shampoos, plopping (wrapping hair up in a microfibre towel), and using less heat and no heat at all through the summer months. My favourite shampoo and conditioner are still The Ordinary. They just seem to work perfectly on my fine hair.