How long does it take to see results from this hair serum?

You need to be consistent and patient when using this product. The reviewer states that it typically takes a minimum of three to four months of consistent daily use before you can expect to see noticeable benefits, which is common for most hair loss treatments.

How should I incorporate The Ordinary Hair Serum into my daily routine?

You should apply a couple of drops of the serum to your scalp once a day, either in the morning or evening. It's meant to be rubbed into your scalp and left on, as it's a treatment for the scalp, not the hair itself.

What are the key ingredients in the Multi-Peptide Hair Serum and what do they do?

The serum features Redensyl, which tells hair follicles to enter the growth phase. Capixyl increases follicular size and strength, and acts as a natural DHT blocker. Procapil also blocks DHT and improves scalp circulation, while Baicapil and Anagain extend the hair's growth phase. Caffeine further stimulates blood flow and potentially blocks DHT.

Is this hair serum suitable for sensitive scalps or those avoiding certain ingredients?

Yes, the product is formulated without alcohol, which can be irritating to the scalp, a benefit highlighted by the reviewer when comparing it to some minoxidil topical treatments. It is also cruelty-free, vegan-free, and contains no harsh chemicals, silicones, or sulfates.

Dr. Kopelman's The Ordinary The Ordinary's Multi-Peptide Hair Serum Review

Q: Does The Ordinary Multi-Peptide Hair Serum actually work for hair growth?

Yes, the serum contains several active ingredients like Redensyl, Capixyl, and Procapil that have evidence for improving hair density, preventing hair loss, and stimulating new growth. These ingredients work by encouraging hair follicles into the growth phase and improving blood circulation to the scalp.

The Ordinary · Skincare · Reviewed by Dr. Kopelman · Published 2025-08-03

Rating 4.5/5Source quality 65/100Evidence 12Claims 9Q&A 4Pros 7Cons 2SkincareIndependent creator

Based on a review by Dr. Kopelman (accessed 2025-08-03).

This page converts Dr. Kopelman's review of the The Ordinary The Ordinary's Multi-Peptide Hair Serum into structured evidence — timestamped claims, pros & cons, and buyer questions. It is not the original review and does not replace watching or reading the full source.

Product Evidence hub pending. This is currently the only analysed source for this product. A full evidence hub becomes available once a second qualifying source is processed.

Source verdict

The reviewer concludes that there is evidence to demonstrate that the ingredients within The Ordinary Hair Serum help improve hair density, prevent hair loss, and stimulate new hair growth. They emphasize that consistent use over 3 to 4 months is required to see results.

About this source

The review analyzes The Ordinary's Multi-Peptide Hair Serum, detailing its ingredients, how to use it, and its potential effects on hair density, thickness, and fullness. It explains the scientific basis for each active ingredient's role in hair growth and loss prevention.

Review notes

This hair serum is an effective solution for improving hair density and preventing hair loss, particularly for those with androgenetic alopecia or telogen effluvium. Its formula features a powerful blend of ingredients like Redensyl and Capixyl, which actively promote hair follicle growth and block DHT, although visible results require consistent daily application for three to four months. This serum is worth considering if you are committed to a long-term treatment plan for thinning hair and seek a product free from common irritants; however, if you expect immediate results or are unwilling to maintain daily use, it may not meet your expectations.

What the reviewer liked

Contains multiple active ingredients proven to stimulate hair growth
Helps improve hair density, thickness, and fullness
Prevents hair loss by blocking DHT and strengthening follicles
Cruelty-free and vegan-free
Alcohol-free, reducing scalp irritation
Free from harsh chemicals, silicones, and sulfates
Formulated to keep hair in the growth phase longer

What the reviewer criticised

Requires consistent daily use for a minimum of 3-4 months to see results
Results are not immediate, requiring significant patience

Structured claims

The Ordinary Multi-Peptide Hair Serum is cruelty-free, vegan-free, alcohol-free, and contains no harsh chemicals, silicones, or sulfates, which is beneficial as alcohol can irritate the scalp.

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Redensyl, a key ingredient, works by targeting stem cells in the hair bulb to signal hair follicles to enter and stay in the anagen (growth) phase.

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Capixyl upregulates collagen production, leading to increased follicular size and stronger hair anchoring, while also acting as a natural DHT blocker and anti-inflammatory for the scalp.

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Procapil acts as a natural DHT blocker and improves blood circulation to the scalp, which is essential for delivering oxygen and nutrients to hair follicles for growth.

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Baicapil and Anagain work to prolong the anagen (growth) phase of hair follicles and to reawaken dormant hair in the telogen phase, encouraging it to grow.

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Caffeine is included for its ability to stimulate blood circulation to the scalp, providing vital nutrients and oxygen to follicles, and there's some evidence it may also block DHT.

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There is evidence for each of the active ingredients in The Ordinary Hair Serum to contribute to improving hair density, preventing hair loss, and stimulating new hair growth.

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Users must be consistent and patient with the serum, as benefits are typically seen after 3 to 4 months of daily use.

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The Ordinary Hair Serum is designed as a treatment for the scalp, focusing on the hair follicles, rather than a direct treatment for the hair strands themselves.

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