Woman applying15% Vitamin C + EGF Serum with text highlighting benefits on a white background

Close-up of a person's face with text indicating skin looks brighter after using 15% Vitamin C + EGF Serum

How to layer 15% Vitamin C + EGF Serum in your routine

Close-up of a person's face with skincare product application, showing improvement statistics from a clinical study after using 15% Vitamin C + EGF Serum

Ingredients in 15% Vitamin C + EGF Serum

Before and after comparison of a person's face after using 15% Vitamin C + EGF Serum

Person applying 15% Vitamin C + EGF Serum to face with close-up focus on skin texture

Person holding 15% Vitamin C + EGF Serum with a neutral background

close-up of a person's face with text about skin improvement from a clinical study of using 15% Vitamin C + EGF Serum

Skin /
Serums /
15% Vitamin C + EGF Serum

15% Vitamin C + EGF Serum | The INKEY List

Name: 15% Vitamin C + EGF Serum
Brand: Inkey List
SKU: IF023KE
Availability: InStock
Rating: 4.4 (601 reviews)

Brightening serum to target hyperpigmentation and uneven skin tone

4.4

Rated 4.4 out of 5 stars

4.4 Stars (601 Reviews)

£15.00 / 30ml

25% OFF 4+ products! Use code PRIME25

Worth 75 Points

What you get: A high-strength brightening serum powered by 15% Vitamin C & EGF. Targets hyperpigmentation, evens skin tone, and revives dull, tired skin for a visibly brighter, more even complexion.

Why it works: Driven by 15% Ascorbyl Glucoside-a stable, antioxidant-packed form of Vitamin C that helps defend against daily environmental damage while visibly brightening skin. Plant-derived EGF peptides work to support skin regeneration, improving elasticity and firmness over time.

How it feels: Lightweight, fast-absorbing, zero stickiness.

When to use: AM & PM. Use this 15% Vitamin C serum after cleansing.

Suitable for:

All skin types
Sensitive skin
Pregnancy & breastfeeding

Targets:

Hyperpigmentation
Dull Skin
Uneven skin tone

How to Use

Can be used in the AM and PM, but recommend in the AM. Antioxidants protect skin against daytime aggressors (UV, pollution and environmental stress), so you'd get more out of this egf serum if used in the morning.

On damp, cleansed skin, apply a pea-sized amount to face and neck. Gently pat in.

Follow with

Treatments → moisturiser.

Finish with SPF in your AM routine.

INKEY Tip

Layer serums thinnest to thickest. Wait 60 seconds between layers to avoid pilling.

Heads up

Don’t mix with Retinol, AHAs, BHAs or PHAs in the same routine. Use Vitamin C in the AM, Retinol or Acids in the PM.When adding new products to your skincare routine, we always recommend patch testing. Learn more here.

Storage

Store in a cool, dry place (15–25°C). Keep out of direct sunlight. Avoid eyes. For external use only. Keep out of reach of children.

Key Claims

87%

agree skin looks brighter*

88%

saw a visible improvement in the tone and texture of their skin*

84%

agree skin looks healthier & less dull*

*4-week independent consumer trial of 64 people

Ingredients

15% Ascorbyl Glucoside (Vitamin C): Stable, effective Vitamin C that converts on skin to brighten and target sun damage and hyperpigmentation.
1% Epitensive™ (EGF Epidermal Growth Factor): Plant-based peptide that supports skin renewal and boosts elasticity.

Aqua (Water/Eau), Ascorbyl Glucoside, Sodium Hydroxide, PEG-40 Hydrogenated Castor Oil, Phenoxyethanol, Benzyl Alcohol, Butylene Glycol, Xanthan Gum, Ethylhexylglycerin, Sodium Metabisulfite, Dehydroacetic Acid, Phytic Acid, Oligopeptide-1.

Epitensive™ is a trademark of Lipotrue and is used with permission

FAQs

HOW OFTEN CAN I USE IT? Once a day, AM. Always follow with SPF.

CAN I USE IT AT NIGHT? You can, but it works best in the morning to fight daily environmental damage.

CAN I LAYER IT WITH OTHER ACTIVES? Don’t layer with exfoliating acids (AHAs, BHAs) or Retinol in the same routine. Alternate: Vitamin C in the AM, Retinol or acids in the PM. Learn how to layer skincare.

CAN I USE IT WITH NIACINAMIDE? Yes - safe to layer with Niacinamide. But don’t mix with pure L-Ascorbic Acid.

DO I NEED TO WAIT BEFORE APPLYING OTHER PRODUCTS? If layering, give it 10 minutes before applying your next product to let EGF do its job.

IS IT SUITABLE FOR SENSITIVE SKIN? Yes - it’s a gentler Vitamin C. But always patch test. Learn more here

WHAT IS EGF? Epitensive™ is a plant-derived Epidermal Growth Factor. A plant-based peptide that supports skin renewal, elasticity and regeneration.

WHAT’S THE % OF EGF? 1% EGF.

WHAT’S THE PH? 6.8–7.2.

VITAMIN C VS EGF - WHAT’S THE DIFFERENCE? Vitamin C protects, brightens, and targets pigmentation. EGF boosts skin renewal and elasticity. Together? A power duo for brighter, smoother skin.

HOW IS THIS DIFFERENT TO YOUR 30% VITAMIN C? 30% Vitamin C uses pure L-Ascorbic Acid for experienced users. This 15% formula is gentler, beginner-friendly, and boosted with EGF.

WHY IS MY SERUM YELLOW? A light yellow tint is normal., the tint comes from the nature of the ingredients.

WHY HAS THE COLOUR CHANGED? Natural oxidation may cause colour shift but won’t affect safety or performance.

WHAT ELSE CAN I USE TO BRIGHTEN SKIN? Try our Fulvic Acid Cleanser alongside this serum. IS EGF SAFE? Yes. EGF is naturally found in the body. The amount here is tiny and safe for skin.

HOW LONG FOR RESULTS? Up to 6 weeks. Consistency is key - don’t overuse, more isn’t better.

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

SAFE FOR PREGNANCY & BREASTFEEDING? Yes - it’s pregnancy-safe.

CAN I USE WITH PRESCRIPTION PRODUCTS? Check with your doctor first.

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

This product is;

Dermatologically tested

Fragrance-free

Gluten-free

Paraben-free

Pregnancy & Breastfeeding safe

Awards & Features

Delivery info

Standard tracked delivery (Evri)

£3.99 or FREE on your first order & 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

Compare with...

This product

Have you tried?

This product

15% Vitamin C + EGF Serum

•Brightens uneven skin tone and dullness.
•Supports skin renewal and boosts elasticity.
•For dullness, first signs of ageing, and uneven skin tone.

or

Have you tried?

Tranexamic Acid Serum

• Fades dark spots and hyperpigmentation.
• Helps prevent future discoloration.
• For stubborn dark spots and post-breakout marks.

More Info

Still not sure?

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

Take The Quiz

More Blogs

Callie has used INKEY products for 2 years.

Callie
"The products helped me sooooo much! I am so happy I found something that’s very light and doesn’t break my face out more."

Selly

4.4

Rated 4.4 out of 5 stars

Based on 601 reviews

Total 5 star reviews: 378 Total 4 star reviews: 154 Total 3 star reviews: 39 Total 2 star reviews: 14 Total 1 star reviews: 16

Reviews Summary

Customers say this serum has a lightweight, fast-absorbing texture that feels comfortable on the skin. Many reviews mention noticeable skin brightening effects within a few weeks of use. The liquid formula layers well under other products, though some note it can pill under makeup. Users appreciate its non-sticky finish and report it works well for sensitive skin. While most see positive results in skin radiance and texture, a few mention slower or minimal changes. Reviews frequently highlight the convenient pump packaging and value for money.

Write a Review (Opens in a new window)

601 reviews

Sort

Leyre L. F.
Verified Buyer
I recommend this product
Age Range 25 - 34
Skin Type Normal
Rated 4 out of 5 stars
1 week ago
Nice Formula, Mild Results
I tried this 15% vitamin C serum and, while it didn’t make a big difference on my skin, I did notice a slight brightening effect. It feels nice to apply and absorbs well, but the results weren’t as noticeable as I expected.
Was this helpful?
Nina F.
Verified Buyer
I recommend this product
Age Range 35 - 44
Skin Type Combination
Skin Concerns Redness, Hyperpigmentation, Breakouts, Oiliness, Blackheads
Sensitive Skin Friendly? Yes
Rated 5 out of 5 stars
1 week ago
Very Good!
It smells very nice and is not greasy and does not feel uncomfortable and heavy and does not sting. It feels good and comfortable and light as though nothing on yet is healing skin. Also the pump bottle keeps it fresh and stable and does not get dark right away or at all hopefully. I have only tried twice now and hopefully it stays fresh for a long time because I have to buy in packs so not to order back and forth because of people on the street. Please be careful. Thank you
Was this helpful?
Emily A.
Verified Buyer
I recommend this product
Age Range 25 - 34
Skin Type Oily
Skin Concerns Breakouts, Hyperpigmentation, Oiliness, Fine Lines and Wrinkles
Sensitive Skin Friendly? Yes
Rated 5 out of 5 stars
2 weeks ago
Great
Consistently reliable
Was this helpful?

15% Vitamin C + EGF Serum | The INKEY List

Suitable for:

Targets:

How to Use

Key Claims

Ingredients

FAQs

No BS Skincare

Awards & Features

Delivery info

Dewy Sunscreen SPF 30

Tranexamic Acid Serum

Hyaluronic Acid Serum - 30ml

Retinol Serum

Barrier & Glow Routine

Compare with...

15% Vitamin C + EGF Serum

Tranexamic Acid Serum

Still not sure?

How to Layer Skincare

Vitamin C: What you need to know

Bright Skin 101

About

Privacy & Terms

Knowledge

Follow Us

Rewards

Where are you Shopping?

15% Vitamin C + EGF Serum | The INKEY List

Suitable for:

Targets:

How to Use

Key Claims

Ingredients

FAQs

No BS Skincare

Awards & Features

Delivery info

Dewy Sunscreen SPF 30

Tranexamic Acid Serum

Hyaluronic Acid Serum - 30ml

Retinol Serum

Barrier & Glow Routine

Compare with...

15% Vitamin C + EGF Serum

Tranexamic Acid Serum

Still not sure?

How to Layer Skincare

Vitamin C: What you need to know

Bright Skin 101

Sign into your account