The INKEY List Collagen Peptide Serum — 1.01 fl oz lightweight peptide face serum to plump & firm skin

The INKEY List Collagen Peptide Serum is a lightweight peptide serum formulated to visibly plump and firm skin while helping soften the look of fine lines and wrinkles.

This daily serum combines targeted peptide complexes to support skin elasticity and surface hydration without heavy texture or fragrance. Designed for layered routines, it works after cleansing and hyaluronic hydration to help skin appear fuller and smoother. The formula is suitable for a wide range of skin types, cruelty-free, and straightforward to include in both morning and evening regimens.

How does this serum help skin look plumper?

The serum uses peptide actives that signal structural support to the skin’s surface, helping the complexion read as firmer and more voluminous. Paired with hydrating ingredients, it improves skin texture so fine lines look less noticeable. Results depend on consistent use and pairing with effective moisturizers and sunscreen.

• Contains Matrixyl 3000 peptide complex to support surface firmness.
• Syn-Tacks Dual Peptide enhances smoothing and reduces line appearance.
• Light, fast-absorbing texture layers well under creams and SPF.

When and how should I apply the Collagen Peptide Serum?

Use it twice daily after cleansing and applying any water-based hydrator like hyaluronic acid. A pea-sized amount is enough — gently pat into face and neck and follow with your chosen moisturizer. In the morning finish with sunscreen to protect improvements in texture.

• Apply AM and PM after cleansing and hydration steps.
• Pat a pea-sized amount into face and neck for best absorption.
• Seal with a moisturizer; apply SPF during daytime use.

Is this serum suitable for sensitive or combination skin?

The formula is fragrance-free and designed to be non-irritating, making it compatible with sensitive and combination skin when introduced gradually. Because it focuses on peptides rather than strong acids or retinoids, many users find it easier to tolerate. Still, patch testing is recommended for very reactive skin types.

• Fragrance-free formulation reduces irritation risk.
• Peptide-focused actives are generally well tolerated.
• Patch test if you have a history of product sensitivity.

What results can I expect and how long will they take?

Visible smoothing and a plumper appearance typically develop after several weeks of consistent use as skin surface texture improves. Peptides support the look of firmness over time rather than delivering instant structural changes. For best outcomes, combine with daily hydration, a barrier-supporting moisturizer, and sun protection.

• Improved texture and softened lines often noticeable within weeks.
• Continued use supports sustained appearance of firmness.
• Complement with ceramide-rich moisturizer and SPF for optimal effects.

Who is this for: The INKEY List Collagen Peptide Serum suits anyone wanting a straightforward, peptide-forward step to help skin look firmer and smoother — ideal for those beginning an anti-aging routine or layering active serums. It’s appropriate for sensitive, combination, and normal skin types and works well for people who prefer fragrance-free, cruelty-free skincare that integrates easily into morning and evening routines.