Silky smooth lip balm with text highlighting its features

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

Lip balm with text claiming plumping effects and user feedback on a white background

Lip balm with text explaining its ingredients and benefits on a white background

Lip balm with text on how to use it, close-up of lip balm with applicator.

Before and after comparison of lips with a lip product applied.

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Two images of a pair of lips, put side by side to show the different after using Tripeptide Plumping Lip Balm for 2 weeks.

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Skin /
Skincare Sets /
Lip Plumping Duo

Lip Plumping Duo

Name: Lip Plumping Duo
Brand: The INKEY List UK
SKU: BUNTILUK083
Price: 20.90 GBP
Availability: InStock
Rating: 3.8 (1323 reviews)

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

3.8

Rated 3.8 out of 5 stars

3.8 Stars (1,323 Reviews)

£20.90 ~~£22.00~~ / 2 full-size products

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Worth 100 Points

What you get: Clinically proven volumising lip plumper that boosts volume by up to 40% in 4 weeks*. Hydrates, repairs and visibly plumps lips for a naturally fuller, healthier look - no tingle, no irritation.

Why it works: 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. Supports skin barrier to protect and maintain lip health.

How it feels: Smooth, non-sticky balm with a clear, glossy finish. Comfortable to wear alone or over lip colour.

When to use: Use Tripeptide plumping lip balm at least 3x daily for best results. 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

This Duo contains x2 Tripeptide Plumping Lip Balms (10ml)

Suitable for:

All skin types
Pregnancy & breastfeeding

Targets:

Lip volume
Dry, cracked lips

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.

Follow with

Can be worn alone or layered over lip colour.

INKEY Tip

Consistent use = better results. Stick to daily use to see full plumping benefits.

Heads up

When adding new products to your skincare 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. 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 HA within the lip to plump, retain moisture and fill fine lines.

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.

FAQs

HOW DOES IT WORK? Unlike traditional lip plumpers, this balm boosts volume while protecting your skin barrier and locking in moisture - no irritation, no sting.

THE HERO INGREDIENTS?6% Tripeptide Complex: Boosts lip volume over time by targeting volume loss for plumper, more defined lips. 2% Ultra Filling Spheres: Dehydrated Hyaluronic Acid absorbs water and expands for instant plumping. Smooths fine lines and locks in moisture.

WHAT HAPPENS IF I STOP USING IT? You’ll start seeing visible plumping in as little as 2 weeks. Keep using at least 3x daily to maintain results.

IS IT STICKY? Nope. Smooth balm texture, not sticky like a gloss.

WILL IT TINGLE/BURN/STING? No tingling, burning or stinging - just plump, hydrated lips.

DOES IT CONTAIN SPF? No.

WHAT DOES IT TASTE/SMELL LIKE? No added flavours - you’ll only notice the natural scent of the ingredients.

CAN I LAYER IT WITH LIPSTICK? Yes! Wear it alone or layer over your favourite lip colour for a glossy boost. (INKEY's founder Colette pairs it with her favourite red.)

CAN I USE IT MORE THAN 3X DAILY? Yes - 3x daily for best results, but reapply as often as you like.

WHERE DOES IT FIT IN MY ROUTINE? Use it as the final step AM + PM, or apply anytime during the day.

IS IT CLEAR OR COLOURED? Clear. Adds a natural sheen that works alone or on top of lipstick.

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.

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

IS IT SAFE FOR PREGNANCY OR BREASTFEEDING? Yes

WHAT’S THE PH? No pH - waterless formula.

No BS Skincare

Skincare can be confusing.

So we cut the BS, and get straight to the point. We simplify the INCI list - commonly known as the ingredients list, that every skincare product has. That’s also where we get our name from. We’re The INKEY List - here to help you get better skin with real knowledge and formulas that deliver. No BS. No hype. Just effective, science-backed skincare that does what it says it will. We show you what your skin needs, not what’s trending. Whether you’re new to skincare or have a solid routine, we’ve always got your back with innovation, education and clinically-proven results.

All at a price that makes sense.

INKEY. No BS, just better skin.

We are B CORP. Our products are formulated with responsibly sourced ingredients, and packaged with 100% recyclable materials. Skin needs love, but so does our planet.

Carbon Net-Zero. All our emissions are offset annually through planet friendly projects with a focus on education.

Approved under the Cruelty Free International Leaping Bunny programme.

100% of our packaging is recyclable. Learn how to recycle your INKEY List products.

Certified by The Vegan Society

These products are;

Dermalogically tested

Clinically tested

Fragrance-free

Gluten-free

Pregnancy & Breastfeeding safe

Awards & Features

Delivery info

Last order dates for Christmas delivery

Order by 8pm December 19th (Express)

Standard tracked delivery (Evri)

£3.99
FREE on orders over £30
(2-5 working days*)

Express tracked delivery (Evri)

£5.95 or FREE on orders £50+
(Up to 2 working days if ordered before 8pm, excluding weekends*)

*Find out more about delivery options and delivery area restrictions here.

Track the status of your parcel with
our trusted couriers

Still not sure?

Take our Skin Quiz, choose your personalised routine and get FREE products.

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

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

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

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

Visibly smoothed fine lines on lips in 2 weeks*

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

“I love that I can immediately see a difference in how defined my lip shape is and their overall fullness but they still look natural and like they’re my own!”- @‌skinwsara

Verified Purchase

“The Tripeptide Plumping Lip Balm has completely changed my mind on lip plumping products! I have seen a pretty noticeable change in my lip volume. I even caught myself in the mirror the other day and couldn't believe how plump my lips looked. I love that there is no tingling sensation and my lips are feeling so hydrated and moisturized. And from someone that suffers from dry lips, this is a complete gamechanger!”- @‌megceline_

Verified Purchase

3.8

Rated 3.8 out of 5 stars

Based on 1,323 reviews

Total 5 star reviews: 612 Total 4 star reviews: 272 Total 3 star reviews: 148 Total 2 star reviews: 113 Total 1 star reviews: 178

Reviews Summary

Customers say this lip balm is hydrating and leaves lips feeling moisturized with a glossy finish. Many appreciate its non-sticky texture and long-lasting formula. Users report mixed results on plumping effects - some notice subtle improvements after consistent use, while others see no difference. Common feedback includes concerns about taste and smell, with several describing it as unpleasant or chemical-like. Some customers experience graininess or clumpy texture in the product. While many find it effective for daily hydration, a few report it can be drying for some users. Overall, reviewers praise its moisturizing properties, though plumping results vary significantly between individuals.

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1,323 reviews

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Indy D.
Verified Buyer
Reviewing
Tripeptide Plumping Lip Balm
I recommend this product
Age Range 45 - 54
Skin Type Combination
Skin Concerns Fine Lines and Wrinkles, Dehydration, Plumping
Have you purchased an INKEY List product before? Yes
How long have you used this product for? 1 month - 3 months
Sensitive Skin Suitability Suitable for my sensitive skin
Rated 5 out of 5 stars
1 week ago
Amazing product
Great texture and product
Was this helpful?
Natalie M.
Verified Buyer
Reviewing
Tripeptide Plumping Lip Balm
I recommend this product
Age Range 25 - 34
Skin Type Combination
Skin Concerns Breakouts, Redness, Blackheads, Oiliness, Acne Scars
Have you purchased an INKEY List product before? Yes
How long have you used this product for? 1-3 weeks
Sensitive Skin Suitability Suitable for my sensitive skin
Rated 5 out of 5 stars
1 week ago
Best lip product ever
I love this product!!
Was this helpful?
Sevcan
Verified Buyer
Reviewing
Tripeptide Plumping Lip Balm
I do not recommend this product
Age Range 35 - 44
Have you purchased an INKEY List product before? Yes
How long have you used this product for? 1 month - 3 months
Sensitive Skin Friendly? Yes
Rated 2 out of 5 stars
1 week ago
Nothing special
I used this product continuously for quite some time, no visible effect, not even temporary plumpness upon application. It tastes unpleasant, not that I eat it on purpose but this is a lip product after all. It didn’t even moisturise my lips.
I must mention though, I have rough lips due to dermatillomania, so I really need strong stuff.
Was this helpful?
IU
INKEY UK
5 days ago
Thank you so much for taking the time to share your honest feedback about our Tripeptide Plumping Lip Balm, Sevcan.

We're truly sorry to hear about your experience with our product and that this wasn't the best fit for you, especially after using it continuously for quite some time. We also appreciate you mentioning the taste concern, as this kind of detailed feedback is incredibly valuable to us.

Thank you for sharing the context about your dermatillomania and how this affects your lip care needs - we recognise that you require particularly effective products, and we take your experience very seriously. We'd love for you to reach out to our askINKEY Team, as we would greatly appreciate the opportunity to understand your experience further and explore how we can support 🖤

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Lip Plumping Duo | The INKEY List

Suitable for:

Targets:

How to Use

Key Claims

Ingredients

FAQs

No BS Skincare

Awards & Features

Delivery info

Tripeptide Plumping Lip Balm

Tripeptide Plumping Pink Lip Balm

Tripeptide Plumping Mocha Brown Lip Balm

Tripeptide Plumping Berry Lip Balm

Eye & Lip Hydration Duo

Still not sure?

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