# The INKEY List Niacinamide Serum for oily acne-prone skin

**Lovi Fit: Average fit for oily acne-prone skin.**
Oily Skin Fit: High · Effectiveness: Average · Safety: Excellent.

Page: https://lovi.care/skincare/uk/p/the-inkey-list/niacinamide-serum/for/oily-acne-prone-skin

The Lovi Fit is the same in every country; only the stores and prices differ, and the ones here are for the United Kingdom.

Brand: [The INKEY List](https://lovi.care/skincare/uk/brands/the-inkey-list)
Category: [Serums and treatments](https://lovi.care/skincare/uk/best/serums)

This fit is calculated for the concerns frequently associated with oily acne-prone skin: shine, breakouts, blemishes, and enlarged pores. For scores based on a full skin profile (12D face scan, goals, preferences), use the Lovi app.

Works for oily acne-prone skin; other serums fit it better.

## Why this fit

- Offers moderate benefits for your oily skin and acne concerns, as niacinamide helps regulate oil and reduce inflammation, while glycerin provides essential hydration. Allantoin and panthenol further support soothing and skin barrier function, addressing general skincare needs.
- While the formula is well-suited for oily skin and offers supportive hydration and soothing effects, it lacks specialized ingredients to directly target and resolve acne, blemishes, and breakouts.
- The product is safe for your skin, with no reported irritation risks due to its gentle formulation and absence of harsh ingredients.

## Fit by skin type

- [Oily skin](https://lovi.care/skincare/uk/p/the-inkey-list/niacinamide-serum/for/oily-skin): Average
- [Dry skin](https://lovi.care/skincare/uk/p/the-inkey-list/niacinamide-serum/for/dry-skin): Average
- [Combination skin](https://lovi.care/skincare/uk/p/the-inkey-list/niacinamide-serum/for/combination-skin): Average
- [Sensitive skin](https://lovi.care/skincare/uk/p/the-inkey-list/niacinamide-serum/for/sensitive-skin): Average
- [Acne-prone skin](https://lovi.care/skincare/uk/p/the-inkey-list/niacinamide-serum/for/acne-prone-skin): Average
- [Skin with dark spots](https://lovi.care/skincare/uk/p/the-inkey-list/niacinamide-serum/for/dark-spots): Average
- [Mature skin](https://lovi.care/skincare/uk/p/the-inkey-list/niacinamide-serum/for/mature-skin): Average
- [Dry sensitive skin](https://lovi.care/skincare/uk/p/the-inkey-list/niacinamide-serum/for/dry-sensitive-skin): Average
- [Oily acne-prone skin](https://lovi.care/skincare/uk/p/the-inkey-list/niacinamide-serum/for/oily-acne-prone-skin): Average (this page)

## Key ingredients

Niacinamide, Glycerin, Squalane, Sodium Hyaluronate, Leuconostoc Radish Root Ferment Filtrate

## What the research says

- A single application of a moisturizing fluid containing hyaluronic acid 1%, glycerin 5%, and Centella asiatica stem cells extract significantly increased skin hydration by 29% and reduced transepidermal water loss at 24 hours compared to baseline and an untreated control site in twenty healthy women. ([Clinical, Cosmetic and Investigational Dermatology, 2017](https://pubmed.ncbi.nlm.nih.gov/28860834/))
- A new topical panthenol-containing emollient significantly improved transepidermal water loss reduction, stratum corneum hydration, and intercellular lipid lamellae length compared with control in healthy subjects without negatively impacting bacterial viability. ([The Journal of Dermatological Treatment, 2017](https://pubmed.ncbi.nlm.nih.gov/27425824/))
- A panthenol-enriched mask significantly decreased erythema and hyperpigmentation, increased sebum and stratum corneum moisture, and reduced transepidermal water loss compared to a saline dressing in 60 subjects undergoing facial laser treatment. ([Journal of Cosmetic Dermatology, 2025](https://pubmed.ncbi.nlm.nih.gov/40613435/))
- Topical dexpanthenol acts as a moisturizer, improves stratum corneum hydration, accelerates wound healing and epidermal regeneration, reduces erythema, and improves symptoms of skin irritation compared to vehicle or no pretreatment. ([American Journal of Clinical Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12113650/))
- Topical treatment of nicotinamide, alone or in combination with other active ingredients, reduces the progression of skin aging and hyperpigmentation in clinical trials while being well tolerated. ([Antioxidants, 2021](https://pubmed.ncbi.nlm.nih.gov/34439563/))
- Topical post-laser application of human adipocyte-derived mesenchymal stem cell media combined with niacinamide significantly improved wrinkle index, melanin index, patient satisfaction, and investigator esthetic improvement scores compared to vehicle cream in patients with aging skin. ([Journal of Cosmetic Dermatology, 2021](https://pubmed.ncbi.nlm.nih.gov/33103316/))
- Topical nicotinamide prevented solar-simulated UV-induced immunosuppression in healthy volunteers, and men experienced immunosuppression at solar-simulated UV doses three times lower than those required for women. ([The Journal of Investigative Dermatology, 2008](https://pubmed.ncbi.nlm.nih.gov/17882270/))
- Topical 5% niacinamide applied twice daily for 12 weeks reduced fine lines and wrinkles, hyperpigmented spots, red blotchiness, and skin sallowness, and improved skin elasticity compared to vehicle control in 50 female white subjects with facial photoaging. ([Dermatologic Surgery, 2005](https://pubmed.ncbi.nlm.nih.gov/16029679/))
- The emollient V0034CR significantly reduced TEWL compared to vehicle and vehicle plus glycerol, and significantly increased corneometry scores compared to vehicle and vehicle plus petrolatum in healthy volunteers with dry skin, demonstrating combined barrier function improvement from petrolatum and hydration improvement from glycerol. ([Journal of Cosmetic Dermatology, 2020](https://pubmed.ncbi.nlm.nih.gov/31532576/))
- Ten days of treatment with a cream containing 20% glycerin significantly increased skin hydration measured by corneometer values in 17 healthy volunteers compared to a placebo cream, but showed no influence on transepidermal water loss or skin sensitivity to an irritating surfactant. ([International Journal of Cosmetic Science, 2001](https://pubmed.ncbi.nlm.nih.gov/18498456/))
- Niacinamide/glycerin body moisturizers provided better rapid and prolonged improvement of cosmetic xerosis through functional improvement of stratum corneum barrier function compared to no treatment and conventional moisturizers in female subjects. ([Journal of Drugs in Dermatology, 2012](https://pubmed.ncbi.nlm.nih.gov/22206073/))
- Squalane at 0.005-0.015% counteracts UVA-induced oxidative stress, inflammation, and collagen metabolism inhibition while stimulating fibroblast migration in human dermal fibroblasts. ([Molecules, 2025](https://pubmed.ncbi.nlm.nih.gov/40363772/))
- Plant-derived squalane protected human dermal fibroblasts against UVA-induced damage by counteracting ROS formation, suppressing apoptosis-related proteins p53, caspase-3, caspase-9, and PARP, and restoring the pro-survival p-Akt/mTOR pathway. ([Antioxidants, 2025](https://pubmed.ncbi.nlm.nih.gov/40722956/))
- Topical application of 0.1% hyaluronic acid formulations of different molecular weights led to significant improvements in skin hydration and elasticity, with low-molecular-weight formulations also significantly reducing wrinkle depth in seventy-six female subjects compared to a vehicle control. ([Journal of Drugs in Dermatology, 2011](https://pubmed.ncbi.nlm.nih.gov/22052267/))
- Topical application of hyaluronic acid in conjunction with free gingival graft significantly reduced donor site postoperative pain until day 7 compared to normal saline, with no significant differences in graft dimensions or patient satisfaction. ([Clinical Oral Investigations, 2022](https://pubmed.ncbi.nlm.nih.gov/34623507/))
- Treatment with a hyaluronic acid-containing mouth rinse or topical gel led to significant lesion reduction, pain relief, and normalization of lesion color in adult patients with minor recurrent aphthous stomatitis, with the gel formulation showing an earlier healing onset at 3 days. ([BMC Oral Health, 2019](https://pubmed.ncbi.nlm.nih.gov/31311529/))

## Why other serums fit oily acne-prone skin better

- A cream combining propolis, tea tree oil, and Aloe vera reduced erythema scars, acne severity index, and total lesion count better than erythromycin cream in sixty patients with mild to moderate acne vulgaris compared to placebo. ([Clinical Pharmacology, 2018](https://pubmed.ncbi.nlm.nih.gov/30588129/))
- Niacinamide and ferulic acid incorporated in a stable multiple emulsion successfully reduced melanin, sebum, and skin erythema while improving skin elasticity and hydration in human skin compared to a placebo. ([BioMed Research International, 2022](https://pubmed.ncbi.nlm.nih.gov/35342760/))

## What reviewers say

Based on a very large amount of data, users with oily and blemish-prone skin frequently praise this serum for its ability to regulate sebum production and calm active breakouts without stripping moisture. The majority report clearer skin and reduced redness. A notable minority experience texture issues, such as a sticky finish or white residue if the product is not applied carefully.

- Liked: Controls excess oil (often mentioned)
- Liked: Great value & packaging (often mentioned)
- Liked: Reduces redness & blemishes (often mentioned)
- Liked: Hydrating & lightweight (sometimes noted)
- Liked: Improves skin texture (sometimes noted)
- Disliked: Sticky or tacky finish (sometimes noted)
- Disliked: White residue/crystallization (sometimes noted)
- Disliked: Caused breakouts/irritation (rarely noted)
- Disliked: Foaming/soaping effect (rarely noted)

## How to apply

- Could be used as part of your PM routine. Start 3 times a week and build up to daily use if your skin tolerates it well.
- Apply your serum after cleansing and toning, but before putting on your moisturizer.
- Gently press 2 to 3 drops of the serum into your skin and let it absorb for a minute.
- Apply the serum on clean, dry skin to help manage your blemishes safely.
- Do a patch test before your first use and avoid the delicate eye area.
- Video: https://storage.pora.ai/c879dda8655a61c19d3d8c9ebad6b06d.mp4

## Questions and answers

### How well does The INKEY List Niacinamide work for oily acne-prone skin?

The INKEY List Niacinamide Serum works reasonably well for oily acne-prone skin by helping control oil and adding lightweight hydration, though it lacks specialized ingredients to directly tackle breakouts. To get a better fit for this skin, a treatment needs dedicated blemish-fighting ingredients like propolis or Vitamin C alongside oil-controlling and soothing components.

### Which ingredients make this serum a good fit for oily acne-prone skin?

Niacinamide helps control oil and calm redness, while glycerin provides light hydration for your skin. To better fit oily acne-prone skin, a treatment of this type needs specialized blemish-fighting ingredients and antioxidants like Vitamin C or propolis.
Sources: [Clinical, Cosmetic and Investigational Dermatology, 2017](https://pubmed.ncbi.nlm.nih.gov/28860834/), [The Journal of Dermatological Treatment, 2017](https://pubmed.ncbi.nlm.nih.gov/27425824/)

### What does Niacinamide do for oily acne-prone skin?

Niacinamide helps balance oil production, calms redness, and is unlikely to irritate oily, acne-prone skin while improving blemishes. Clinical tests show it reduces excess oil and helps clear up both inflammatory and non-inflammatory acne breakouts.
Sources: [Journal of Cosmetic and Laser Therapy, 2006](https://pubmed.ncbi.nlm.nih.gov/16766489/), [Journal of Cosmetic Dermatology, 2024](https://pubmed.ncbi.nlm.nih.gov/38299457/)

### What does Glycerin do for oily acne-prone skin?

Glycerin helps keep oily acne-prone skin hydrated without feeling heavy. It draws moisture into the skin while supporting the skin barrier so it stays soft and balanced.
Sources: [The British Journal of Dermatology, 2008](https://pubmed.ncbi.nlm.nih.gov/18510666/), [Clinical, Cosmetic and Investigational Dermatology, 2017](https://pubmed.ncbi.nlm.nih.gov/28860834/)

### Where does this serum go in a skincare routine for oily acne-prone skin?

This treatment goes in the evening routine after cleansing and before moisturizing, though some serums may also be used in the morning or twice a day. A product of this type needs specialized ingredients to directly target and resolve breakouts and blemishes for this skin.

### Can I use this serum with retinol, and in what order?

Yes, you can use this serum with retinol by applying the serum first to keep your oily skin calm and hydrated before layering retinol. The gentle formulation is unlikely to cause extra irritation, but watch how your skin reacts when combining active treatments.

### How often should I use this serum?

You can use this treatment in the evening as part of your routine. Oily acne-prone skin needs a product that includes specialized ingredients to actively target and clear breakouts.

### Can this serum clog pores, cause breakouts or purging for oily acne-prone skin?

This serum is unlikely to cause breakouts or irritation, as its gentle formula has a very low risk of negative reactions on your skin. However, because it lacks specialized ingredients to directly target and resolve blemishes, oily acne-prone skin needs a product with targeted acne-fighting ingredients.

### Is this serum fragrance-free and alcohol-free?

Yes, it has no fragrance and no drying alcohol.

## Alternatives for oily acne-prone skin

- [Beauty of Joseon Propolis + Niacinamide Glow Serum](https://lovi.care/skincare/uk/p/beauty-of-joseon/propolis-niacinamide-glow-serum/for/oily-acne-prone-skin) — Superior fit — £36.96 at Amazon
- [Neogen Dermalogy Real Vitamin C Serum](https://lovi.care/skincare/uk/p/neogen-dermalogy/real-vitamin-c-serum/for/oily-acne-prone-skin) — Superior fit — £25.95 at Amazon
- [NEOGEN DERMALOGY REAL VITA C SERUM](https://lovi.care/skincare/uk/p/neogen-dermalogy/real-vita-c-serum/for/oily-acne-prone-skin) — High fit — £25.95 at Amazon

## Pairs well with

- Cleanser: [Paula's Choice CLEAR Pore Normalizing Cleanser](https://lovi.care/skincare/uk/p/paula-s-choice/clear-pore-normalizing-cleanser/for/oily-acne-prone-skin) — Superior fit — £26.00 at Amazon
- Hydrating Toner: [Paula's Choice Pore-Reducing Toner](https://lovi.care/skincare/uk/p/paula-s-choice/skin-balancing-pore-reducing-toner/for/oily-acne-prone-skin) — Superior fit — £30.37 at Amazon
- Moisturizer: [COSRX Oil-Free Ultra-Moisturizing Lotion with Birch Sap](https://lovi.care/skincare/uk/p/cosrx/oil-free-ultra-moisturizing-lotion-with-birch-sap/for/oily-acne-prone-skin) — Superior fit — £14.80 at Amazon

## Where to buy

- Amazon.co.uk: £8.99 (https://www.amazon.co.uk/dp/B09N9Z7NBS?tag=lovi-care-web-product-21&linkCode=osi&th=1&psc=1)
Prices checked 3 Nov 2026.

## Ingredients

Water, Niacinamide, Glycerin, Propanediol, Butylene Glycol, Phenoxyethanol, Hydroxyethyl Acrylate Sodium Acryloyldimethyl Taurate Copolymer, Hydroxyethylcellulose, Squalane, Xanthan Gum, Glycine Soja Oil Soybean Oil, Allantoin, Sodium Phytate, Polysorbate 60, Panthenol, Glycolipids, Leuconostoc Radish Root Ferment Filtrate, Sorbitan Isostearate, Glycine Soja Soybean Sterols, Citric Acid, Sodium Hyaluronate, Disodium Phosphate, Sodium Phosphate
## About the Lovi Fit

Lovi: Unbiased, science-based skincare AI trained on real user outcomes.

Lovi calculates every fit score from the full ingredient list with brand-independent rules its dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update. Levels from best to worst: Superior, High, Average, Low, Caution, Warning.

Behind this fit score: Nadia Kapleva, MS (Co-founder, Medical Director); Alexey Shagraev, PhD (Co-founder, CEO and CTO); Dr. Sofía Perea Pérez, MD, MSc (Medical Board); Aishani Shah, MD (Medical Board); Asya Zubkova, MS (Medical Board); Hanna Kurets, MD (Medical Board, Medical Advisor); Elina Nazarenko, MD (Medical Board); Victoria Derkova, MS (Medical Board).

Page built Nov 8, 2026.

More from Lovi: https://lovi.care/skincare/llms.txt

## This page in other countries

- United States: https://lovi.care/skincare/p/the-inkey-list/niacinamide-serum/for/oily-acne-prone-skin
- United Kingdom: https://lovi.care/skincare/uk/p/the-inkey-list/niacinamide-serum/for/oily-acne-prone-skin (this page)
- Ireland: https://lovi.care/skincare/ie/p/the-inkey-list/niacinamide-serum/for/oily-acne-prone-skin
- Germany: https://lovi.care/skincare/de/p/the-inkey-list/niacinamide-serum/for/oily-acne-prone-skin
- France: https://lovi.care/skincare/fr/p/the-inkey-list/niacinamide-serum/for/oily-acne-prone-skin
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