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The Ordinary Hair Care Multi-Peptide Serum for Hair Density

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Common questions

Is The Ordinary Hair Care Multi-Peptide Serum for Hair Density healthy?

The Ordinary Hair Care Multi-Peptide Serum for Hair Density scores 63/100 on Scout's independent analysis of ingredients, additives, and lab results — a fair-to-good score — solid, with tradeoffs. This hair serum contains a mix of beneficial ingredients such as peptides and plant extracts, which are known for their positive effects on hair health.

Which ingredients drive The Ordinary Hair Care Multi-Peptide Serum for Hair Density's score?

In Scout's ingredient-by-ingredient analysis, GLYCERIN, BIOTINOYL TRIPEPTIDE-1, ACETYL TETRAPEPTIDE-3 count in its favor. The full breakdown, with why each one matters, is in the Key ingredients section on this page.

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The Ordinary Hair Care Multi-Peptide Serum for Hair Density

The Ordinary
63 Fair

Analysis updated July 2026 · How Scout scores

$24.00 · 2 oz · $12.00 / ounce
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At a glance

Beneficial ingredients 4
Harmful ingredients 0
Owned by Estée Lauder
Category Serum
Summary

This hair serum contains a mix of beneficial ingredients such as peptides and plant extracts, which are known for their positive effects on hair health. However, it also includes several synthetic additives and preservatives, which contribute to a higher level of processing. The presence of these additives, while common in cosmetic formulations, slightly detracts from the overall ingredient safety profile.

Key ingredients 8

GLYCERIN
Good

Glycerin is a well-known humectant that attracts moisture to the skin and hair, promoting hydration.

See more about GLYCERIN →
BIOTINOYL TRIPEPTIDE-1
Good

This peptide is associated with promoting hair growth and strengthening hair strands.

ACETYL TETRAPEPTIDE-3
Good

A peptide that may support hair follicle health and encourage hair growth.

LARIX EUROPAEA WOOD EXTRACT
Good

Derived from larch trees, this extract has antioxidant properties that can help protect scalp health.

AQUA (WATER)
Neutral

Water is a common base in skincare products, providing hydration without added benefits or risks.

See more about AQUA (WATER) →
PROPANEDIOL
Neutral

Propylene glycol derivative acts as a solvent and humectant, helping to keep the product stable and moisturizing.

See more about PROPANEDIOL →
BUTYLENE GLYCOL
Neutral

This ingredient functions as a solvent and conditioning agent, aiding in product consistency.

See more about BUTYLENE GLYCOL →
CAFFEINE
Neutral

Standard formulation ingredient — neither beneficial nor harmful at typical use.

See more about CAFFEINE →

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Amazon pricing & content

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