Marc Severin
Formulation Analyst
Former cosmetics formulator turned independent analyst. 8 years in the beauty industry taught him one thing: most products are 90% marketing and 10% formula. Now he reads INCI lists so you don't have to.
Areas of expertise
Articles by Marc Severin (10)
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Sunday Riley Good Genes dupes: 6 budget alternatives
Sunday Riley Good Genes dupes compared: 6 budget lactic acid serums that match the results, with prices, concentrations and peer-reviewed evidence.
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Drunk Elephant vs Dr. Dennis Gross: which is worth it
Drunk Elephant vs Dr. Dennis Gross compared by formula, price and results: vitamin C, peptides, glycolic peel pads and honest buying picks.
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The Ordinary vs The Inkey List: which dupe brand wins 2026
Independent The Ordinary vs The Inkey List comparison: pricing, INCI transparency, actives lineup and beginner fit, with peer-reviewed sources and clear picks.
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CeraVe vs La Roche-Posay: barrier brands head to head
Independent CeraVe vs La Roche-Posay comparison: ceramides, niacinamide, thermal water and prebiotics, with peer-reviewed evidence and skin-type fit.
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Mineral oil in skincare: the truth behind Nivea's favourite ingredient
What mineral oil and petrolatum do in skincare, whether they are safe, the cancer and pore-clogging myths, and the cosmetic vs industrial grade split.
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Best Cleansers for Sensitive Skin: Gentle Formulas Ranked
A formulation analyst ranks the best cleansers for sensitive skin by surfactant type, pH and soothing actives, with picks for rosacea and eczema.
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Skin cycling: does this TikTok trend actually work?
A dermatology-graded review of skin cycling. What the 4-night protocol does for your barrier, what the evidence says, and how to build a smarter version.
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La Mer vs CeraVe: the 350 EUR Question Answered by Science
La Mer vs CeraVe: formulation, ceramides vs Miracle Broth, per-gram cost, derm consensus, and the verdict on whether the 350 EUR is worth it.
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Skincare Routine Order: Morning & Night Sequence That Works
The correct skincare routine order, AM and PM. Layering science, active ingredient conflicts, and a step-by-step sequence dermatologists actually recommend.
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CeraVe vs Cetaphil: which moisturizer is actually better?
Independent CeraVe vs Cetaphil comparison. Ceramides, niacinamide, INCI lists, clinical evidence and skin-type fit, with AAD and peer-reviewed sources.
Marc Severin is part of the SkinScore editorial team. All scores and analyses are reviewed by at least two team members before publication. Our methodology is fully transparent and based on EU CosIng data, SCCS opinions, and peer-reviewed dermatological research.
See our methodology →