Multi-Peptide Serum for Hair Density for Thicker, Fuller Looking Hair

Name: The Ordinary Multi-Peptide Serum for Hair Density for Thicker, Fuller Looking Hair
Brand: The Ordinary

serum

Overall score7.3

The Ordinary Multi-Peptide Serum for Hair Density for Thicker, Fuller Looking Hair scores 7.3/9.8 overall. It ranks highest in low irritation risk (9.5) and formulation safety (9.0).

✶ Hero ingredients

#2Propanediol

Draws in moisture

#3Butylene Glycol

Lightweight humectant and solvent

#4Glycerin

One of the most effective humectants

Score breakdown

Overall

7.3

Hydration Efficacy5.1

Irritation Risk9.5

Active Ingredient Strength4.7

Ingredient Transparency8.5

Formulation Safety9.0

Estimated — based on ingredient analysis. Scores refine as user reviews are added.

Scores last verified: June 2026

What makes The Ordinary Multi-Peptide Serum for Hair Density for Thicker, Fuller Looking Hair stand out

The Ordinary Multi-Peptide Serum for Hair Density for Thicker, Fuller Looking Hair is a solid serum with an overall score of 7.3/9.8. it delivers a well-rounded formulation that balances efficacy with gentleness. The formula leads with Propanediol, Butylene Glycol, Glycerin — ingredients that support the skin barrier and moisture levels.

It performs well on low irritation risk (9.5).

Is this right for you?

Great for

✓Sensitive skin — low irritation risk with a gentle formulation
✓Safety-conscious shoppers — clean formulation with minimal flags
✓Ingredient-aware buyers — transparent, well-documented formula

Key ingredients

✶
Propanediol
Draws in moisture — #2 in the INCI list
✶
Butylene Glycol
Draws in moisture — #3 in the INCI list
✶
Glycerin
Draws in moisture — #4 in the INCI list

Full ingredient list

29 ingredients — listed in INCI order (highest concentration first)

#1Aqua (Water)#2Propanediol #3Butylene Glycol #4Glycerin #5Caffeine #7Acetyl Tetrapeptide-3 #10Scutellaria Baicalensis Root Extract #14Camellia Sinensis Leaf Extract

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✶

Caffeine

Works on your skin — #5 in the INCI list

✶

Acetyl Tetrapeptide-3

Works on your skin — #7 in the INCI list

#16

Oleanolic Acid