# Kiehl's Ultra Pure High-Potency Serum for oily acne-prone skin

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

Page: https://lovi.care/skincare/de/p/kiehl-s/ultra-pure-high-potency-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 Germany.

Brand: [Kiehl's](https://lovi.care/skincare/de/brands/kiehl-s)
Category: [Serums and treatments](https://lovi.care/skincare/de/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.

A great choice for oily acne-prone skin; a few serums fit it even better.

## Why this fit

- Offers excellent hydration for your oily skin due to the high concentrations of glycerin and hyaluronic acid, which effectively moisturize without adding excess oil.
- While beneficial for general hydration and suitable for acne-prone skin, the formula lacks targeted ingredients to specifically address your concerns of acne, blemishes, and breakouts.
- The product is safe for your oily skin, with no risks of irritation due to the absence of prohibited or harsh ingredients.

## Fit by skin type

- [Oily skin](https://lovi.care/skincare/de/p/kiehl-s/ultra-pure-high-potency-serum/for/oily-skin): High
- [Dry skin](https://lovi.care/skincare/de/p/kiehl-s/ultra-pure-high-potency-serum/for/dry-skin): High
- [Combination skin](https://lovi.care/skincare/de/p/kiehl-s/ultra-pure-high-potency-serum/for/combination-skin): High
- [Sensitive skin](https://lovi.care/skincare/de/p/kiehl-s/ultra-pure-high-potency-serum/for/sensitive-skin): Average
- [Acne-prone skin](https://lovi.care/skincare/de/p/kiehl-s/ultra-pure-high-potency-serum/for/acne-prone-skin): High
- [Skin with dark spots](https://lovi.care/skincare/de/p/kiehl-s/ultra-pure-high-potency-serum/for/dark-spots): High
- [Mature skin](https://lovi.care/skincare/de/p/kiehl-s/ultra-pure-high-potency-serum/for/mature-skin): High
- [Dry sensitive skin](https://lovi.care/skincare/de/p/kiehl-s/ultra-pure-high-potency-serum/for/dry-sensitive-skin): Average
- [Oily acne-prone skin](https://lovi.care/skincare/de/p/kiehl-s/ultra-pure-high-potency-serum/for/oily-acne-prone-skin): High (this page)

## Key ingredients

Niacinamide, Hyaluronic Acid, Glycerin

## What the research says

- 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/))
- 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/))
- 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/))
- 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/))

## What reviewers say

Based on a very large amount of data, this collection of minimalist serums is widely praised for its fast-absorbing, non-sticky textures and efficacy in targeting specific skin concerns like dryness, excess oil, and uneven texture. The Hyaluronic Acid version is lauded for immediate plumping, the Niacinamide serum is a favorite for controlling shine without irritation, and the Glycolic Acid variant is effective for smoothing skin, though it requires caution for sensitive types.

- Liked: Fast-absorbing texture (mostly mentioned)
- Liked: Effective oil control (often mentioned)
- Liked: Gentle minimalist formula (often mentioned)
- Liked: Immediate hydration (often mentioned)
- Disliked: High price point (often mentioned)
- Liked: Visible skin smoothing (sometimes noted)
- Disliked: Lack of dramatic results (sometimes noted)
- Disliked: Packaging concerns (rarely noted)
- Disliked: Potential irritation (rarely noted)
- Disliked: Texture preference (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

### What makes Kiehl's Ultra Pure Serum a great fit for oily acne-prone skin?

This serum is a great fit because its high concentrations of glycerin and hyaluronic acid provide excellent hydration for oily skin without adding excess oil. It is safe for your skin with no risks of irritation, though a product for this skin also needs targeted ingredients to specifically clear acne, blemishes, and breakouts.
Sources: [Clinical, Cosmetic and Investigational Dermatology, 2017](https://pubmed.ncbi.nlm.nih.gov/28860834/)

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

Glycerin and hyaluronic acid make this serum a great fit because they provide excellent hydration for oily skin by moisturizing without adding excess oil. This formula is also safe and unlikely to cause irritation due to the lack of harsh ingredients.
Sources: [Clinical, Cosmetic and Investigational Dermatology, 2017](https://pubmed.ncbi.nlm.nih.gov/28860834/)

### 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 Hyaluronic Acid do for oily acne-prone skin?

Hyaluronic acid helps calm oily acne-prone skin by reducing sebum production and lipid synthesis in sebaceous glands. It also supports skin barrier function and improves hydration while helping deliver treatments without causing irritation.
Sources: [The Journal of Investigative Dermatology, 2017](https://pubmed.ncbi.nlm.nih.gov/28163068/), [Journal of Cosmetic Dermatology, 2022](https://pubmed.ncbi.nlm.nih.gov/35796638/)

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

This serum goes in the evening routine after cleansing and before moisturizing, which keeps the routine simple and safe. It may also be used in the morning or twice a day depending on your skin.

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

You can use this serum with retinol by applying the serum first to hydrate your skin, followed by your retinol product. This helps keep your skin comfortable while it adjusts to the retinoid treatment.
Sources: [Journal of Cosmetic Dermatology, 2024](https://pubmed.ncbi.nlm.nih.gov/38102855/)

### How often should I use this serum?

You can use this serum in your evening routine for simplicity and extra safety. It is safe for oily skin and helps moisturize without adding excess oil, though it lacks targeted ingredients to address acne and breakouts.
Sources: [Clinical, Cosmetic and Investigational Dermatology, 2017](https://pubmed.ncbi.nlm.nih.gov/28860834/)

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

This serum is unlikely to clog pores or cause breakouts on oily acne-prone skin because it moisturizes effectively without adding excess oil, and it has a very low risk of irritation. However, since it lacks targeted ingredients for blemishes, this type of skin may need additional products containing acne-fighting ingredients to properly manage breakouts.
Sources: [Clinical, Cosmetic and Investigational Dermatology, 2017](https://pubmed.ncbi.nlm.nih.gov/28860834/)

## Alternatives for oily acne-prone skin

- [Beauty of Joseon Propolis + Niacinamide Glow Serum](https://lovi.care/skincare/de/p/beauty-of-joseon/propolis-niacinamide-glow-serum/for/oily-acne-prone-skin) — Superior fit — €9.99 at Amazon
- [Neogen Dermalogy Real Vitamin C Serum](https://lovi.care/skincare/de/p/neogen-dermalogy/real-vitamin-c-serum/for/oily-acne-prone-skin) — Superior fit — €29.76 at Amazon
- [NEOGEN DERMALOGY REAL VITA C SERUM](https://lovi.care/skincare/de/p/neogen-dermalogy/real-vita-c-serum/for/oily-acne-prone-skin) — High fit — €36.50 at Amazon

## Pairs well with

- Cleanser: [CeraVe Foaming Facial Cleanser](https://lovi.care/skincare/de/p/cerave/foaming-facial-cleanser/for/oily-acne-prone-skin) — Superior fit — €11.75 at Amazon
- Hydrating Toner: [Paula's Choice Pore-Reducing Toner](https://lovi.care/skincare/de/p/paula-s-choice/skin-balancing-pore-reducing-toner/for/oily-acne-prone-skin) — Superior fit — €36.00 at Amazon
- Moisturizer: [innisfree Green Tea Seed Hyaluronic Acid Hydrating Serum](https://lovi.care/skincare/de/p/innisfree/green-tea-seed-hyaluronic-acid-hydrating-serum/for/oily-acne-prone-skin) — Superior fit — €37.64 at Amazon

## Where to buy

No store in Germany has a checked price for this product, so the page shows none.

## Ingredients

Water, Glycerin, Hyaluronic Acid, Phenoxyethanol, Chlorphenesin, Tetrasodium Glutamate Diacetate, Citric Acid
## 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/kiehl-s/ultra-pure-high-potency-serum/for/oily-acne-prone-skin
- United Kingdom: https://lovi.care/skincare/uk/p/kiehl-s/ultra-pure-high-potency-serum/for/oily-acne-prone-skin
- Ireland: https://lovi.care/skincare/ie/p/kiehl-s/ultra-pure-high-potency-serum/for/oily-acne-prone-skin
- Germany: https://lovi.care/skincare/de/p/kiehl-s/ultra-pure-high-potency-serum/for/oily-acne-prone-skin (this page)
- France: https://lovi.care/skincare/fr/p/kiehl-s/ultra-pure-high-potency-serum/for/oily-acne-prone-skin
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