The Ordinary Multi-Peptide HA Serum Buffet Review: Does It Actually Work?

Last updated: September 24, 2026

The Ordinary Multi-Peptide + HA Serum, long known by its nickname “Buffet,” is the brand’s all-in-one peptide serum. It combines several peptide technologies with hyaluronic acid in a single bottle and is usually priced around $18–22 for 30 ml. It is pitched as a broad anti-aging serum for fine lines, firmness, and hydration. This review explains what is in it, what peptides can realistically do, and whether it deserves a place in your routine.

What is inside “Buffet”

The serum blends multiple peptide complexes and amino acids. These include signal peptides studied for supporting skin structure, peptides marketed for expression lines, and a mix of amino acids and hyaluronic acid for hydration. The idea behind the “buffet” name is simple: rather than relying on a single peptide, it offers a range that may support the skin in several ways.

Peptides in plain terms

Peptides are short chains of amino acids. In lab studies, some can signal skin cells to support collagen and other proteins. Evidence in real-world use is generally positive but modest, and results vary. Peptides are best viewed as a supportive, low-irritation step alongside proven actives like retinoids and sunscreen.

What results to expect

Who it suits

• People looking for a gentle anti-aging serum that rarely irritates.
• Sensitive skin that cannot tolerate strong retinoids or acids.
• Retinoid users who want an extra supportive step in the morning.
• Budget shoppers who want to try peptides without spending $60–100.

Who might not need it

If you are in your early 20s with no specific anti-aging concerns, sunscreen and a basic routine are more important. If your budget is limited, a retinoid will deliver more visible change than a peptide serum.

How to use it

1. After cleansing, apply a few drops to the face and neck.
2. Use morning and/or evening.
3. Apply before heavier serums and moisturizer.
4. Follow with broad-spectrum SPF 30+ in the morning.

Layering tips

The serum pairs easily with most ingredients. If you use a strong acid or vitamin C, apply those first and let them absorb, or use peptides at a different time of day. Keep copper peptide products separate from strong acids and L-ascorbic acid, since they may reduce each other’s effectiveness.

Texture and practical notes

The serum has a light, slightly silky texture that absorbs quickly. It can feel slightly tacky if you use too much. Under sunscreen or makeup, it layers smoothly when applied in a thin layer. A 30 ml bottle lasts around two months with twice-daily use.

Buffet vs the copper peptide version

The Ordinary also offers a version with 1% copper peptides, which adds a blue-tinted copper tripeptide complex. Copper peptides are studied for their role in skin repair and firmness. That version costs more and has a slightly different texture. If you want the simplest, most flexible option, the original is easier to combine with other actives; if you want to try copper peptides, the copper version is a more concentrated option.

Value

At roughly $0.60–0.75 per ml, it is one of the most affordable multi-peptide serums available. Premium peptide serums often cost three to five times more. The results are not dramatically different in most side-by-side experiences, making this a strong value choice for peptide curious users.

How it fits in a full anti-aging routine

A sensible anti-aging routine for most people looks like this: sunscreen every morning, a retinoid a few nights a week, and a moisturizer that supports the barrier. Buffet fits in as an extra layer in the morning or on nights you skip the retinoid. It adds hydration and gentle support without irritation, rounding out the routine rather than replacing any core step.

FAQ

Can I use The Ordinary Buffet with retinol?

Yes. It pairs well with retinoids. You can apply it before the retinoid at night or use it in the morning and keep the retinoid for the evening.

Is it suitable for oily skin?

Yes. The texture is lightweight and non-greasy. Follow with a gel moisturizer if you prefer a lighter overall routine.

Bottom line

The Ordinary Multi-Peptide + HA Serum is an affordable, gentle, multi-peptide serum that adds hydration and subtle anti-aging support. It will not replace sunscreen or retinoids, but as a low-irritation extra step, especially for sensitive skin or tight budgets, it offers strong value.