# ONE/SIZE skincare

Page: https://lovi.care/skincare/uk/brands/one-size

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

ONE/SIZE is an American skincare brand founded in 2020 and owned by Luxury Brand Partners.

[en.wikipedia.org](https://en.wikipedia.org/wiki/Patrick_Starrr) [cosmeticsbusiness.com](https://cosmeticsbusiness.com/one-size-patrick-starrr-expands-global-reach-to-become-legacy-brand) [tracxn.com](https://tracxn.com/d/companies/one-size/__4hWbJDwtTWGsPIlpNHgqdchbgClANMzqdjON3pVjfLM) [beautymatter.com](https://beautymatter.com/articles/beauty-brands-laying-the-groundwork-for-potential-sales)

ONE/SIZE is celebrated for its primers and foundations, which feature advanced formulas designed for high-performance wear. Its products suit oily, combination, and textured skin best, offering balanced application without heaviness. For acne-prone skin, the OIL SUCKER stands out as a reliable choice to manage excess shine. Every carefully crafted selection delivers a polished finish that respects the skin's natural integrity.

This page covers some of the most popular ONE/SIZE products; for the whole ONE/SIZE range, with a fit score for every product, [use the Lovi app](https://app.pora.ai/vqqJ/j1xj2b6o?af_sub2=brand&af_sub3=selection_note&af_sub4=pg0b2934e922).

## Questions and answers

### Is ONE/SIZE worth it?

ONE/SIZE is worth it for shoppers looking for specialized care, as Lovi rates the brand-focused routines Superior for dry, oily, sensitive, combination, and acne-prone skin. Every product from ONE/SIZE on this page lists no fragrance in its ingredients, making the range gentle for daily use.

### What are ONE/SIZE's best products?

ONE/SIZE does not feature single best products since the routines built around them fit dry, oily, sensitive, combination, and acne-prone skin at a Superior level.

### Does ONE/SIZE cause breakouts?

ONE/SIZE includes OIL SUCKER, which carries a caution for acne-prone skin and an average fit for oily acne-prone skin, so it may cause breakouts for some users. Lovi rates the ONE/SIZE-focused routine Superior for acne-prone skin.

### Is ONE/SIZE fragrance-free?

Yes, every one of the ONE/SIZE products on this page is fragrance-free.

### What are the key ingredients in ONE/SIZE products?

ONE/SIZE products feature ingredients such as [glycerin](https://lovi.care/skincare/uk/ingredients/glycerin), cyclopentasiloxane, and [dimethicone](https://lovi.care/skincare/uk/ingredients/dimethicone). Lovi rates the ONE/SIZE-focused routine Superior for dry, oily, sensitive, combination, and acne-prone skin.

### How do I build a ONE/SIZE skincare routine?

To build a skincare routine with ONE/SIZE, you can use the brand's selection of products which are all made without fragrance. Lovi rates the ONE/SIZE-focused routine Superior for dry, oily, sensitive, combination, and acne-prone skin.

### What are good alternatives to ONE/SIZE?

Good alternatives to ONE/SIZE with pages on Lovi include CeraVe, Cetaphil, Paula's Choice, Neutrogena, Kiehl's, and Dermalogica. For dry skin, a CeraVe-focused routine is a High fit, compared to a Superior fit for ONE/SIZE. For oily, sensitive, combination, and acne-prone skin, routines focused on either brand offer a Superior fit.

### ONE/SIZE vs CeraVe: which is better?

For dry skin, ONE/SIZE-focused routines rate Superior while CeraVe-focused routines rate High. For oily, sensitive, combination, and acne-prone skin, ONE/SIZE-focused routines rate Superior, matching CeraVe-focused routines.

### Who owns ONE/SIZE, and where is it from?

ONE/SIZE is an American brand founded in 2020, owned by Luxury Brand Partners.

[en.wikipedia.org](https://en.wikipedia.org/wiki/Patrick_Starrr) [cosmeticsbusiness.com](https://cosmeticsbusiness.com/one-size-patrick-starrr-expands-global-reach-to-become-legacy-brand) [tracxn.com](https://tracxn.com/d/companies/one-size/__4hWbJDwtTWGsPIlpNHgqdchbgClANMzqdjON3pVjfLM) [beautymatter.com](https://beautymatter.com/articles/beauty-brands-laying-the-groundwork-for-potential-sales)

### Is ONE/SIZE cruelty-free?

PETA, Leaping Bunny, and Cruelty Free International, the registries Lovi checks, do not list ONE/SIZE as cruelty-free.

## Research behind ONE/SIZE's key ingredients

- [The 24-hour skin hydration and barrier function effects of a hyaluronic 1%, glycerin 5%, and Centella asiatica stem cells extract moisturizing fluid: an intra-subject, randomized, assessor-blinded study](https://pubmed.ncbi.nlm.nih.gov/28860834/) Glycerin · Clinical, Cosmetic and Investigational Dermatology, 2017
- [Safety assessment of cyclomethicone, cyclotetrasiloxane, cyclopentasiloxane, cyclohexasiloxane, and cycloheptasiloxane](https://pubmed.ncbi.nlm.nih.gov/22247236/) Cyclopentasiloxane · International Journal of Toxicology, 2011
- [A controlled, three-part trial to investigate the barrier function and skin hydration properties of six skin protectants](https://pubmed.ncbi.nlm.nih.gov/16439809/) Dimethicone · Ostomy/wound Management, 2005

## Similar brands

- American skincare: [CeraVe](https://lovi.care/skincare/uk/brands/cerave)
- American skincare: [Cetaphil](https://lovi.care/skincare/uk/brands/cetaphil)
- American skincare: [Paula's Choice](https://lovi.care/skincare/uk/brands/paula-s-choice)
- American skincare: [Neutrogena](https://lovi.care/skincare/uk/brands/neutrogena)
- American skincare: [Kiehl's](https://lovi.care/skincare/uk/brands/kiehl-s)
- American skincare: [Dermalogica](https://lovi.care/skincare/uk/brands/dermalogica)
- American skincare: [Good Molecules](https://lovi.care/skincare/uk/brands/good-molecules)
- American skincare: [Clinique](https://lovi.care/skincare/uk/brands/clinique)
- American skincare: [SkinCeuticals](https://lovi.care/skincare/uk/brands/skinceuticals)
- American skincare: [Estée Lauder](https://lovi.care/skincare/uk/brands/estee-lauder)

## Popular brands

- Korean skincare: [SKIN1004](https://lovi.care/skincare/uk/brands/skin1004)
- Korean skincare: [Anua](https://lovi.care/skincare/uk/brands/anua)
- Korean skincare: [Medicube](https://lovi.care/skincare/uk/brands/medicube)
- Canadian skincare: [The Ordinary](https://lovi.care/skincare/uk/brands/the-ordinary)
- Korean skincare: [Beauty of Joseon](https://lovi.care/skincare/uk/brands/beauty-of-joseon)
- Korean skincare: [COSRX](https://lovi.care/skincare/uk/brands/cosrx)
- French skincare: [La Roche-Posay](https://lovi.care/skincare/uk/brands/la-roche-posay)
- Korean skincare: [Dr. Althea](https://lovi.care/skincare/uk/brands/dr-althea)
- Korean skincare: [Some By Mi](https://lovi.care/skincare/uk/brands/some-by-mi)
- Korean skincare: [Torriden](https://lovi.care/skincare/uk/brands/torriden)
- Korean skincare: [celimax](https://lovi.care/skincare/uk/brands/celimax)
- Korean skincare: [Purito](https://lovi.care/skincare/uk/brands/purito)
- Korean skincare: [ROUND LAB](https://lovi.care/skincare/uk/brands/round-lab)
- Korean skincare: [AXIS-Y](https://lovi.care/skincare/uk/brands/axis-y)
- Korean skincare: [d'Alba](https://lovi.care/skincare/uk/brands/d-alba)
- Korean skincare: [LANEIGE](https://lovi.care/skincare/uk/brands/laneige)
- Korean skincare: [Haruharu Wonder](https://lovi.care/skincare/uk/brands/haruharu-wonder)
- Korean skincare: [Pyunkang Yul](https://lovi.care/skincare/uk/brands/pyunkang-yul)
- Korean skincare: [innisfree](https://lovi.care/skincare/uk/brands/innisfree)
- French skincare: [Caudalie](https://lovi.care/skincare/uk/brands/caudalie)

## About the Lovi Fit

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

Lovi rates every product from its 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 these ratings: 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/brands/one-size
- United Kingdom: https://lovi.care/skincare/uk/brands/one-size (this page)
- Ireland: https://lovi.care/skincare/ie/brands/one-size
- Germany: https://lovi.care/skincare/de/brands/one-size
- France: https://lovi.care/skincare/fr/brands/one-size
- Italy: https://lovi.care/skincare/it/brands/one-size
- Netherlands: https://lovi.care/skincare/nl/brands/one-size
- Spain: https://lovi.care/skincare/es/brands/one-size
- Canada: https://lovi.care/skincare/ca/brands/one-size
- Australia: https://lovi.care/skincare/au/brands/one-size
- Singapore: https://lovi.care/skincare/sg/brands/one-size
- Saudi Arabia: https://lovi.care/skincare/sa/brands/one-size
- United Arab Emirates: https://lovi.care/skincare/ae/brands/one-size