Simple and Principia are two distinct skincare lines offering targeted daily care through thoughtfully crafted formulas. Simple is a British brand founded in 1960 and owned by Unilever PLC since 2011, known for gentle moisturizers, makeup removers, cleansers, and toners that thoughtfully incorporate niacinamide and glycerin to suit acne-prone skin and mature skin best. Meanwhile, the second brand is widely loved for its thoughtful cleansers and precise formulas that suit balanced to oily skin best, helping maintain a healthy, balanced complexion. While both offer dependable daily care, they differ in their standout products and ideal skin types, with the former addressing hyperpigmentation, dark spots, and aging signs, and the latter featuring items like the Gel de Limpeza GL-01 for acne-prone skin.
Simple is a British skincare brand founded in 1960 and owned by Unilever PLC since 2011.
This page compares some of the most popular Simple and Principia products; for every product of both brands, with a fit score for your own skin, use the Lovi app.
Simple has a High fit for mature skin in its toner and features lightweight, value-friendly moisturizers, while the products on this page for Principia are limited to a single cleanser. Niacinamide helps reduce cutaneous pigmentation.
What is the difference between Simple and Principia?
Simple offers a broad selection of fragrance-free cleansers, makeup removers, and moisturizers featuring niacinamide and glycerin, achieving a High fit for sensitive skin with its toner and micellar waters. In contrast, Principia features a single cleanser on this page with an Average fit for oily skin and Caution for dry skin, though both brands list no fragrance across their products.
Simple offers a better range of cleansers than Principia, as Lovi rates Simple's Refreshing Facial Wash as at least average for most skin types including sensitive skin, whereas Principia's Gel de Limpeza GL-01 receives low or caution ratings for dry and acne-prone skin.
Which is more affordable, Simple or Principia?
Simple offers value-friendly moisturizers, as noted by reviewers on the products on this page.
Which causes fewer breakouts, Simple or Principia?
Simple features products on this page with a Lovi fit level of Average for acne-prone skin, while reviews note that the brand occasionally causes breakouts or irritations. Principia features products on this page with a Lovi fit level of Low for acne-prone skin, providing insufficient data to judge whether it causes fewer breakouts than Simple.
Which brand has been established longer, Simple or Principia?
Simple has been established longer, having been founded in 1960 in the United Kingdom, whereas Principia was founded in 2020.
Do any products from either Simple or Principia contain fragrance?
Every product on this page from both Simple and Principia lists no fragrance in its ingredients.
What key ingredients are found across Simple's products?
Simple features key ingredients such as niacinamide and glycerin across the products on this page. Niacinamide helps reduce cutaneous pigmentation, while glycerin helps improve skin hydration.
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Behind this comparison
Lovi compares products by their fit scores, calculated from the full ingredient list with brand-independent rules our 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.
