Plump + Juicy Vegan Collagen + Probiotic Spray-On Serum

Kosas Plump + Juicy Vegan Collagen + Probiotic Spray-On Serum turns the serum step into a single spritz. Vegan collagen, peptides and hyaluronic acid come in one mist that hydrates, soothes and visibly firms — a quick layer of skincare before moisturiser or makeup.

What it actually does

• Firms and plumps, visibly. Kosas pairs vegan collagen for visible firmness with peptides that lift and plump the look of skin.
• Hydrates with hyaluronic acid in the same pass.
• Supports skin's pH. The brand says the probiotic formula nourishes and balances skin's pH, making ingredients more bioavailable, and helps protect against the visible effects of aging and stress.
• One-step application. It's a spray, so the whole face is covered in seconds — no dropper, no rubbing.
• Vegan, gluten-free and cruelty-free, in recyclable packaging.

How to use

1. Spray onto clean skin morning and night.
2. Follow with your usual moisturiser.
3. If you use Kosas complexion makeup — Revealer Foundation, Revealer Concealer, Cloud Set powder (all sold separately) — this is the brand's recommended skin-prep underneath.
4. Recycling: remove and discard the pump and cap, then rinse and recycle the bottle.

Questions

Is this a mist or a serum?

Both — it has serum-style actives (vegan collagen, peptides, hyaluronic acid) delivered in a spray format. Treat it as your serum step, applied in one spritz.

Do I still need moisturiser after?

Yes — Kosas recommends following with your favourite moisturiser to seal the hydration in.

Can I wear it under makeup?

Yes. Kosas positions it as the skincare step beneath its tinted complexion products for a natural, real-skin finish — spray, moisturise, then apply makeup.

How long does delivery take?

Delivery takes 3 to 21 working days, depending on availability. In-stock items arrive at the shorter end of that window; items we order in for you take longer. Details in our Shipping Policy.

Payment and returns?

We accept credit card, debit card, Instapay and mobile wallets — no cash on delivery. Returns apply to defective, damaged or expired items only, reported within 1 day of delivery; refunds go to the original payment method within 15–30 days. See our Return & Refund Policy.