Buffet

The beauty industry has a peptide pricing problem. Individual peptide complexes — Matrixyl, SYN-AKE, Argireline — are routinely the marquee ingredient in serums that cost $50, $80, $120. Each gets its own elegant bottle, its own marketing story, its own place in the luxury cabinet. The Ordinary looked at that model and decided to put four of them in a single formula for twenty dollars. The audacity was the point.

Launched in February 2017 under the deliberately irreverent name 'Buffet' — later rechristened the more descriptive 'Multi-Peptide + HA Serum' — this product represented The Ordinary's most complex formulation attempt at the time. The ingredient list reads like a peptide technology conference agenda: Matrixyl 3000 for collagen signaling, Matrixyl Synthe'6 for broad matrix repair, ARGIRELOX for dual-mechanism expression line modulation, and SYN-AKE for venom-mimicking muscle relaxation. Below that sits a supporting infrastructure of multi-weight hyaluronic acid, 11 amino acids, a Lactococcus ferment lysate, and a full natural moisturizing factor complex. It's not a serum — it's an ecosystem.

The scientific rationale for combining these technologies isn't just additive — it's strategic. Aging attacks the skin on multiple fronts simultaneously. Collagen degrades. Matrix proteins fragment. Repetitive muscle contractions deepen expression lines. The skin's natural moisture-retention system weakens. A single-pathway approach — even a good one — can only address a fraction of this cascade. Buffet attacks all four fronts at once.

Matrixyl 3000 (Palmitoyl Tripeptide-1 + Palmitoyl Tetrapeptide-7) works as the collagen-signaling foundation. The tripeptide mimics a collagen breakdown fragment, tricking the skin into activating its wound-repair collagen synthesis. The tetrapeptide reduces IL-6 secretion, limiting the inflammation that accelerates matrix degradation. In manufacturer clinical studies, a 4% formulation reduced wrinkle volume by 17.1% over two months.

Matrixyl Synthe'6 (Palmitoyl Tripeptide-38) broadens the scope. Where Matrixyl 3000 primarily targets collagen I and III, Synthe'6 stimulates six matrix components including collagen IV, fibronectin, laminin-5, and the skin's own hyaluronic acid production. A placebo-controlled study showed 31% reduction in forehead wrinkle volume and 28.5% reduction in crow's feet surface area after two months. The two Matrixyl technologies together address both the quantity and diversity of structural proteins the aging skin needs.

ARGIRELOX combines Acetyl Hexapeptide-8 (Argireline) with Pentapeptide-18, targeting expression lines through two mechanisms: SNARE complex inhibition and enkephalin-mediated calcium channel modulation. SYN-AKE adds a third pathway, blocking nicotinic acetylcholine receptors. Three distinct approaches to the same problem — repetitive muscle contractions that carve lines into the forehead and around the eyes. SYN-AKE alone showed measurable smoothing in 80% of study volunteers after 28 days.

The supporting cast deserves more than a passing mention. The multi-weight hyaluronic acid complex — crosspolymer for sustained surface hydration, regular sodium hyaluronate for deeper penetration — provides both immediate plumping and the moisture foundation that peptide actives need to function optimally. The 11 amino acids and NMF components mirror the skin's natural moisture-retention system, replenishing the hygroscopic molecules that decline with age. The Lactococcus Ferment Lysate contributes probiotic-derived benefits to the overall hydration and barrier support.

On the skin, Buffet is unassuming. A few drops of clear, slightly viscous serum that spreads easily and absorbs within a minute or two. There's a brief tackiness that bothers some users — the combination of HA crosspolymer and glycerin creates a film-forming feel that resolves completely once a moisturizer is applied on top. No scent, no tingling, no visible immediate effect beyond mild hydration. The drama, if any, happens at the cellular level over weeks.

And weeks are what you'll need. Peptide science is inherently gradual. These molecules signal biological processes — collagen synthesis, matrix protein production — that operate on cellular timescales. Most users report the first noticeable improvements in skin texture and smoothness at 1-2 weeks, with visible fine line reduction appearing at 4-8 weeks and full benefits developing over 2-3 months. If you're looking for overnight transformation, peptides aren't the mechanism to deliver it.

The conflict list is mercifully short. Avoid direct L-ascorbic acid and strong direct acids in the same routine step — the pH differential can destabilize the peptides. Everything else is compatible: niacinamide, retinol, hyaluronic acid, ceramides. Vitamin C derivatives (ascorbyl glucoside, ascorbyl tetraisopalmitate) are fine. This flexibility makes Buffet easy to integrate into virtually any anti-aging routine.

The honest limitation is that peptide evidence, while encouraging, is less robust than the evidence base for retinoids, vitamin C, or sunscreen. Most peptide clinical studies are manufacturer-sponsored, with relatively small sample sizes and short durations. The individual results are genuinely positive — measurable wrinkle reduction, improved firmness, smoothing effects — but they fall short of the large-scale, independent, long-term clinical trials that back retinoids. Buffet is best understood as a complementary anti-aging strategy rather than a standalone solution.

At $19.90 for 30 mL (or $29.90 for 60 mL), the value proposition is extraordinary. Serums containing just one of these peptide technologies routinely cost $50-80. Getting all four, plus multi-weight HA, a probiotic ferment, and an NMF complex, for under twenty dollars is the kind of pricing that would be dismissed as too good to be true if The Ordinary hadn't spent a decade proving that skincare markup has always been a choice rather than a necessity.

Formula

The Science

The four peptide complexes in Buffet each have distinct mechanisms supported by manufacturer clinical data. Matrixyl 3000 (Palmitoyl Tripeptide-1 + Palmitoyl Tetrapeptide-7) functions as a matrikine — a fragment that mimics collagen breakdown products to trigger the skin's repair-synthesis cascade. The tripeptide-1 component signals fibroblasts to increase collagen I and III production, while tetrapeptide-7 reduces interleukin-6 secretion, limiting the chronic low-grade inflammation (inflammaging) that accelerates matrix degradation. A 24-subject half-face study showed a 4% formulation reduced mean wrinkle volume by 17.1% after 2 months.

Matrixyl Synthe'6 (Palmitoyl Tripeptide-38) extends the matrix repair beyond collagen alone. In vitro studies demonstrated increases in collagen I (105%), collagen III (104%), collagen IV (42%), fibronectin, laminin-5, and hyaluronic acid synthesis. A placebo-controlled study of 25 women showed 31% reduction in forehead wrinkle volume, 28.5% reduction in crow's feet surface area, and 28% improvement in lifting after 2 months of twice-daily application.

The expression line technology combines three muscle-relaxation pathways. ARGIRELOX pairs Acetyl Hexapeptide-8 (which inhibits SNARE complex formation required for acetylcholine vesicle release) with Pentapeptide-18 (which mimics enkephalin to modulate calcium channel activity). SYN-AKE adds nicotinic acetylcholine receptor blockade — the mechanism inspired by Wagler's pit viper venom. This triple-pathway approach addresses neuromuscular contraction at the vesicle, channel, and receptor level simultaneously. A study combining 5% each of pentapeptide-18 and argireline showed up to 47% wrinkle reduction after 28 days.

References

1. The anti-wrinkle efficacy of argireline, a synthetic hexapeptide, in Chinese subjects: a randomized, placebo-controlled study — American Journal of Clinical Dermatology (2013)
2. Acetyl Hexapeptide-8 in Cosmeceuticals — A Review of Skin Permeability and Efficacy — International Journal of Molecular Sciences (2025)

Dermatologist Perspective

Dermatologists view multi-peptide formulations like Buffet as a legitimate complement to established anti-aging staples like retinoids and sunscreen. Board-certified dermatologists acknowledge that the individual peptide technologies — particularly Matrixyl and Argireline — have clinical evidence supporting their anti-wrinkle activity, though they note the evidence base is less extensive than for retinoids. Dermatologists commonly recommend peptide serums for patients who cannot tolerate retinoids, pregnant patients seeking anti-aging options, and as part of comprehensive multi-active routines where peptides provide a complementary mechanism alongside retinoids and antioxidants. The multi-pathway approach of combining collagen-signaling and muscle-relaxing peptides is recognized as scientifically rational, even if long-term independent clinical trials on the specific combination are limited.

Guidance

The Ordinary launched 'Buffet' in February 2017 with a name that was deliberately tongue-in-cheek: this was a product where you got a little bit of everything, all-you-can-eat style. It was later renamed 'Multi-Peptide + HA Serum' to better describe its contents, though the original name stuck in popular usage. The idea was audacious — four proprietary peptide complexes that would typically each anchor their own $50+ product, combined in a single formula for under $20.

About The Ordinary Established Brand (5–20 years)

The Ordinary launched in 2016 under DECIEM and rapidly became one of the most recognized clinical skincare brands globally. Its ingredient-first, transparency-driven approach is backed by formulation science, though the brand does not conduct proprietary clinical trials on most products.

Brand founded: 2016 · Product launched: 2017

Myth vs. Reality

Myth

Peptide serums are just expensive water — they can't actually reduce wrinkles.

Reality

Each of the four peptide complexes in this formula has manufacturer-sponsored clinical data showing measurable wrinkle reduction. Matrixyl Synthe'6 reduced forehead wrinkle volume by 31% in a placebo-controlled study. SYN-AKE showed smoothing in 80% of volunteers. While peptide evidence is less robust than retinoid studies, dismissing all peptide data as ineffective contradicts the available clinical evidence.

Myth

You can't mix different peptide technologies in one formula — they'll interfere with each other.

Reality

The peptide complexes in this formula target different biological pathways: Matrixyl 3000 and Synthe'6 stimulate matrix protein synthesis, while ARGIRELOX and SYN-AKE modulate muscle contraction. These are complementary, not competing, mechanisms. There is no evidence that combining signaling peptides with neurotransmitter-modulating peptides reduces the efficacy of either.

FAQ

Common Praise

"Noticeably smoother and more hydrated skin within the first week of use"

"Fine lines appear visibly reduced after 4-8 weeks of consistent application"

"Exceptional value for a multi-peptide serum — comparable products cost $60-150"

"Lightweight formula layers well under moisturizer and sunscreen"

"No irritation even on sensitive skin — suitable for peptide beginners"

"Visible improvement in skin elasticity and firmness over time"

Common Complaints

"Sticky or tacky texture before a moisturizer is applied on top"

"Pilling when layered with silicone-based products"

"Results are gradual and subtle — some users expect faster changes"

"Dropper dispenses too much product if squeezed too hard"

"Some users report no noticeable visible difference after months of use"

Appears In

best peptide serum best serum for aging best budget anti aging serum best serum for sensitive skin best pregnancy safe anti aging serum

Related Conditions

aging dehydration dullness texture

Related Ingredients

peptides hyaluronic acid probiotics prebiotics retinol