Collagen Booster Firming Peptide Serum

The INKEY List Collagen Booster Firming Peptide Serum is a lightweight serum built around two peptide technologies that target firmness. If fine lines and a loss of bounce are your main concerns, this is the step that slots between cleansing and moisturiser — morning and night.

What it actually does

• Targets slackness and fine lines. The formula is designed to leave skin looking firmer and more plumped, softening the appearance of lines over time.
• Supports your skin's own collagen. According to The INKEY List, the Matrixyl 3000™ peptide works by mimicking what natural collagen does for the skin, helping it look fuller and firmer.
• Doubles up with a second peptide. Syn-Tacks™, a dual peptide, adds a further collagen-supporting boost to the formula, per the brand.
• Stays light on the skin. It's a thin, hydrating serum texture, so it layers without heaviness — and it's cruelty-free.

How to use

1. Use morning and evening on cleansed skin.
2. Apply a pea-sized amount across face and neck.
3. Tap it in gently with your fingertips rather than rubbing.
4. Layer other serums and your moisturiser on top as you like.

Note: for external use only. If irritation develops, stop using the product.

Is it right for you?

Questions

Can I layer it with my other serums?

Yes — the brand confirms it can sit alongside other serums and moisturisers. Apply it to cleansed skin, then continue with the rest of your routine.

When should I use it — morning or night?

Both. The INKEY List suggests using it in the AM and PM, a pea-sized amount each time on face and neck.

How long does delivery take?

Delivery takes 3 to 21 working days, depending on availability. Items ready in stock arrive sooner; items we bring in for you take longer.

How can I pay?

Credit card, debit card, Instapay and mobile wallets — no cash on delivery.

What's the return policy?

Returns are accepted for defective, damaged or expired items only, reported within 1 day of delivery. Once verified, we refund to the original payment method within 15–30 days.