Simple and Principia are two distinct skincare collections that offer thoughtful cleansers, gentle moisturizers, makeup removers, and targeted treatments. The British brand is known for its skin-friendly ingredients like niacinamide and glycerin, while the latter is widely loved for its precise formulas. Simple suits acne-prone and oily acne-prone skin best, whereas the other brand suits balanced to oily skin. They differ primarily in their specific target concerns, as both help maintain a healthy, balanced complexion through distinct formulations.
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 is the better choice on this page, offering a much wider selection of fragrance-free cleansers, moisturizers, and makeup removers that achieve High fit levels for various skin types. In contrast, Principia features only a single cleanser on this page, which provides a Caution fit level for dry and dry sensitive skin types.
What is the difference between Simple and Principia?
Simple features a variety of cleansers, makeup removers, and moisturizers that Lovi rates as having High or Average fit for sensitive skin, whereas Principia offers just one cleanser with an Average to Caution fit. Simple products on this page list no fragrance.
Simple or Principia: which cleanser is better?
For cleansing, Simple offers a better range on this page with products like the Refreshing Facial Wash, which has an average fit for various skin types, whereas Principia's cleanser receives a low or caution rating for dry skin.
Which is more affordable, Simple or Principia?
Simple offers more affordable options on this page, featuring a variety of budget-friendly moisturizers and cleansers. Principia currently lists only one cleanser here, making Simple the broader choice for lower-cost skincare.
Which causes fewer breakouts, Simple or Principia?
Simple offers more varied options for acne-prone skin, but reviewers note that the products on this page sometimes cause breakouts or irritations, while Principia has too little data on this page to judge.
When was each brand founded, and who is the current parent company of Simple versus Principia?
Simple was founded in 1960 in the United Kingdom and has been owned by Unilever PLC since 2011. Principia was founded in 2020 and is owned by Viziera Participações Ltda.
How does the Lovi fit level for oily skin compare between Simple's Refreshing Facial Wash and Principia's Gel de Limpeza GL-01?
Simple's Refreshing Facial Wash has an Average Lovi fit level for oily skin, which is the same as the Average fit level for Principia's Gel de Limpeza GL-01.
Do any products from Simple or Principia contain fragrance in their ingredients?
No, every product on this page from both Simple and Principia lists no fragrance in its ingredients.
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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.
