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what is in the ordinary peptide serum peptide

Published October Oct 18, 2026 1:04 AM

When exploring the world of skincare, it is common to wonder, what is in the ordinary peptide serum? As someone who has spent considerable time testing various formulations, I have found that The Ordinary offers a range of products that rely on sophisticated chemistry rather than marketing fluff. Navigating their collection requires understanding that they offer distinct products for different needs—primarily their face serums and their specialized hair density formulas.

Unders The Multi-Peptide Collection includes two of our quintessential age-support formulas to offer a wide range of benefits to reduce signs of aging. tanding the Face Formulas

The most popula The Multi-Peptide Collection includes two of our quintessential age-support formulas to offer a wide range of benefits to reduce signs of aging. r face product is the Multi-Peptide + HA Serum (formerly known as "Buffet"). This formula is a powerhouse that uses peptide technologies to target multiple signs of aging. In my experience, it Highlighted Ingredients: - Redensyl™ (Givaudan): Targets stem cells and human fibroblasts from the derma papilla to improve hair density. - Procapil™ (Sederma  is one of two of our quintessential age-support formulas that I reach for consistently.

The ingredient list is impressive, featuring five peptide technologies, amino acids, and hyaluronic acid. Specifically, it incorporates the collagen-boosting Matrixyl complex and muscle-relaxing peptides like Syn-ake and Argirelox. The inclusion of Peptides supports skin hydration and improves firmness, which is why I find this peptide serum so effective for those looking to maintain a plump Highlighted Ingredients: - Redensyl™ (Givaudan): Targets stem cells and human fibroblasts from the derma papilla to improve hair density. - Procapil™ (Sederma  , youthful appearance. It truly promotes skin elasticity and smoothness by utilizing multiple hyalur The Ordinary Multi Peptide Serum, Fragrance Free Rating onic acid complexes that hydrate the surface layers of the skin.

For those interested in the Multi-Peptide + HA Serum by The Ordinary, it is important to note the base: Aqua (Water), Glycerin, and Lactococcus Ferment Lysate. These work alongside specific chains like Pentapeptide-18 and Palmitoyl Tripeptide-1 to provide a comprehensive approach to skin resilience.

The Hair Density Formulation

It is easy to confuse the face serums with the Multi-Peptide Serum for Hair Density for Thicker, Fuller Looking Hair. When I reviewed the ingredients reviewed for The Ordinary Multi-Peptide Serum for Hair Density, I noticed a significant departure from the face-focused blends.

This product is formulated with REDENSYL, Procapil, CAPIXYL, BAICAPIL, AnaGain, and High-Solubility Caffeine. Unlike the face serums, this advanced peptide technologies and plant-based extracts blend is designed specifically for the scalp. The base consists of Aqua. Solvent, Propanediol, and Butylene Glycol, creating a lightweight, non-greasy texture. I have personally found that the caffeine content provides an invigorating sensation, while the inclusion of peptide technologies alongside a series of plant-based extracts makes it a unique addition to a grooming routine.

Why The Ord Mar 12, 2024 — A daily face serum that promotes skin elasticity and smoothness, improving the appearance of fine lines. inary Stands Out

What I appreciate most a BOOSTS SKIN FIRMNESS: Combines five peptide technologies, amino acids, and hyaluronic acid to help promote smoother, firmer, and more elastic skin. bout The Ordinary is their transparency. Whether you are using their Multi-Peptide + HA Serum for your face or the hair density version, the science is clear.

* Face: Focuses on Peptides that support the skin barrier, hydration, and long-term textural improvement.

* Hair: Focuses on scalp health and hair appearance through a targeted complex of proprietary ingredients.

Every peptide used in these formulas is chosen for a specific purpose, whether it is to smooth the look of fine lines or to support the appearance of density. If you are new to the brand, I recommend starting with the Multi-Peptide + HA Serum to see how your skin responds to these well-studied technologies. By focusing on ingredient integrity, these serums demonstrate why The Ordinary remains a staple in my personal collection—they provide exactly what they claim, without the unnecessary fillers often found in high-end alternatives.

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