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Close-up of a woman applying a lip balm tube to her lips, with text below reading 'Why we love it' and descriptive copy about two bestselling lip essentials.

A comparison graphic for Tripeptide Plumping Lip Balm showing two circular swatches: a clear pale yellow balm labeled 'Clear' on the left and a berry red balm labeled 'Berry' on the right, with text stating 'VISIBLY PLUMPS LIPS' below.

Lip plumping product advertisement with close-up of lips and text claiming 40% increase after 4 weeks.

Key claims of using Tripeptide plumping lip balm

Collage of four close-up images of lips with different skin tones.

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Prep It. Plump It - Plumping Lip Balm Gift Set

Name: Prep It. Plump It - Plumping Lip Balm Gift Set
Brand: INKEY UK
Price: 15.00 GBP
Availability: InStock

Clear and Berry lip balm set, clinically proven to plump lips by up to 40% in 4 weeks* - no tingle, no irritation

£15.00 (Worth £22.00) / 2 full-size products

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What you get: Two full-size Tripeptide Plumping Lip Balms, one Clear and one sheer warm red Berry tint. Both are clinically proven to boost lip volume by up to 40% in 4 weeks*, hydrating and smoothing while they visibly plump for a naturally fuller, healthier look. No tingle, no irritation.

Why it works: Both balms are powered by 6% Tripeptide Complex to boost lip volume and definition over time. 2% Ultra Filling Spheres deliver Hyaluronic Acid to lock in moisture, smooth fine lines and improve lip texture. Shea Butter helps nourish and soften. Together they support your lip barrier to protect and maintain lip health.

How it feels: Smooth, buttery, non-sticky balm with a glossy finish. Clear gives a natural sheen, Berry adds a sheer wash of warm red colour.

When to use: Use at least 3x daily for best results. Reach for Clear for everyday hydration and lip prep under makeup, and Berry when you want colour and shine in one step. Suitable for everyone, especially if lips feel dry, cracked or need a volume boost.

*4-week independent clinical study of 20 people under dermatological control

Suitable for:

All skin types
Pregnancy & breastfeeding

Targets:

Dry or dehydrated lips
Lips lacking fullness

How to use

Use AM and PM. Apply a small amount to clean, dry lips. For best results, apply at least 3x daily for 4 weeks.

Choosing your shade: Use Clear for everyday hydration or as lip prep under makeup. Use Berry for a sheer wash of colour and shine. Layer Clear over Berry for extra gloss.

INKEY Tip: Apply before makeup for the ultimate plumped lip prep. Consistent use = better results, so stick to daily use to see the full plumping benefits.

Heads up: When adding new products to your routine, we always recommend patch testing. Learn more here.

Storage: Store cool and dry (15-25 °C). Keep out of sunlight and away from eyes. External use only. If contact with eyes occurs, rinse well immediately with water. Keep out of reach of children.

Key Claims

95%

95% of people felt the balm instantly nourished and hydrated the lips**

Clinically proven to plump lips by up to 40% in 4 weeks*

Visibly smoothed fine lines on lips in 2 weeks*

*4-week independent clinical study of 20 people under dermatological control

**4-week independent consumer trial of 20 people under dermatological control

Ingredients

6% Tripeptide Complex: Visibly increases lip volume for plumper-looking, more defined lips.
2% Ultra Filling Spheres: Delivers Hyaluronic Acid within the lip to plump, retain moisture and fill fine lines.
Shea Butter: Helps nourish and soften lips

Both balms use the same formula. The only difference is that Berry contains Mica and Iron Oxides for its sheer tint.

Clear

Ricinus Communis (Castor) Seed Oil, Hydroxystearic/Linolenic/Oleic Polyglycerides, Glyceryl Rosinate, Theobroma Grandiflorum (Cupuaçu) Seed Butter, Butyrospermum Parkii (Shea) Butter, Ethylhexyl Palmitate, Candelilla Cera, Mangifera Indica (Mango) Seed Butter, Orbignya Oleifera (Babassu) Seed Oil, Squalane, Cetearyl Ethylhexanoate, Hydrogenated Olive Oil, Salvia Hispanica (Chia) Seed Oil, Caprylic/Capric Triglyceride, Glyceryl Behenate, Olea Europaea (Olive) Oil Unsaponifiables, Tribehenin, Sorbitan Isostearate, Tocopherol, Portulaca Pilosa Extract, Trihydroxystearin, Helianthus Annuus (Sunflower) Seed Oil, Sucrose Cocoate, Brassica Alba Sprout Extract, Sodium Hyaluronate, Palmitoyl Tripeptide-1, Palmitoyl Tripeptide-38, Glucomannan.

Berry

As above, plus Mica and CI 77491 (Iron Oxides).

FAQs

WHAT'S IN THIS SET? Two full size 10ml Tripeptide Plumping Lip Balms, one Clear and one sheer warm red Berry tint.

WHAT'S THE DIFFERENCE BETWEEN CLEAR AND BERRY? The formula is the same. Clear gives a glossy natural sheen, Berry adds a sheer wash of warm red colour. Berry contains Mica and Iron Oxides for the tint.

WHAT DOES A PEPTIDE LIP BALM ACTUALLY DO? Peptides are short chains of amino acids. Our 6% Tripeptide Complex targets lip volume loss to give plumper-looking, more defined lips over time, rather than creating a temporary swelling effect.

DO PEPTIDE LIP BALMS WORK? Ours is clinically proven to plump lips by up to 40% in 4 weeks* and to visibly smooth fine lines on lips in 2 weeks*. Results build with consistent use.

HOW QUICKLY WILL I SEE RESULTS? You'll notice hydration and a subtle plumping effect straight away. Visible plumping starts in as little as 2 weeks, with the full result at 4 weeks of consistent use.

WILL IT TINGLE, BURN OR STING? No. There's no menthol, cinnamon or capsicum. Suitable for sensitive lips and daily use.

IS IT STICKY? No. It's a smooth balm texture, not sticky like a gloss.

CAN I WEAR THESE UNDER OR OVER LIPSTICK? Yes. Clear makes a great base for lip colour, and Berry can be layered over lip colour to boost vibrancy.

HOW OFTEN SHOULD I USE IT? At least 3x daily for best results, but reapply as often as you like.

HOW LONG DOES ONE TUBE LAST? With recommended use of 3x daily, one tube typically lasts 6 to 8 weeks.

IS IT SUITABLE FOR SENSITIVE LIPS? Yes. The gentle formula contains no harsh irritants, fragrances or tingling agents.

CAN I USE IT IF I HAVE LIP FILLERS? Yes. Safe to use alongside lip fillers to hydrate, smooth and support lip volume. Always patch test first. If unsure, speak to your GP.

DOES IT CONTAIN SPF? No.

WHAT DOES IT TASTE OR SMELL LIKE? No added flavours. You'll only notice the natural scent of the ingredients.

IS IT VEGAN? Yes, certified by The Vegan Society.

IS IT SAFE FOR PREGNANCY OR BREASTFEEDING? Yes.

IS THIS A GOOD GIFT? Yes. Two full size everyday lip essentials in one set, suitable for all skin types.

*4-week independent clinical study of 20 people under dermatological control

We Give A Care

Skincare has become complicated. Too many ingredients, too many opinions, and too many products promising everything.

At The INKEY List, we believe you don't need more skincare, you need clarity you can trust. That's why we take the science and make it simple. We help people understand their skin, find the right ingredients, and build routines that deliver real results. Through innovative, science-backed formulas, we make effective skincare accessible to everyone. Because we care about great skincare for everyone.

Clear guidance. Proven ingredients. Real results.

Because at The INKEY List, We Give A Care.