How we score.
Two kinds of numbers, two different jobs: a Health Score that measures a product’s formula, and a Skin Score that measures your skin, day by day. Here’s exactly how we arrive at both.
The formula. And your face.
A product can be perfectly formulated and still not move the needle for you. That’s why Sivona scores both sides: what you put on your skin, and what your skin does next.
Health Score
An objective formula rating, 0–100. It evaluates ingredient safety, formulation quality, and regulatory standing across nine signals. Same number for every user — it’s about the product, not the person.
Skin Score
A daily reading of your skin, 0–100. One photo is scored on four metrics — hydration, smoothness, calmness, and clarity — and your Skin Score is their average. It’s a trendline, not a diagnosis.
Plain-English calls.
Product scores land on a 0–100 scale, and every scan gets a plain-English verdict so you don’t have to interpret the number yourself.
Every scan, no black box.
Each product is evaluated across nine signals. Every flag comes with a written reason and, where it exists, a link to the study behind it.
Skin type match
How well the formulation fits oily, dry, combination, sensitive, or normal skin.
Active ingredients
Presence of proven actives — retinoids, niacinamide, vitamin C, AHAs/BHAs, peptides, ceramides.
Comedogenicity
Pore-clogging risk on an evidence-based 0–5 scale, weighted by INCI position.
Sensitivity flags
Irritation potential — harsh surfactants, essential oils, and known sensitizers, cross-checked against your profile.
Fragrance load
From truly fragrance-free to multiple synthetic compounds. “Parfum” is never treated as safe by default.
Allergen disclosure
Declared EU allergens and undisclosed blends — and whether the label tells you the whole story.
Microplastics
Synthetic polymers that persist in water systems, flagged when they appear in the formula.
Endocrine disruptors
Ingredients with regulatory or peer-reviewed evidence of hormonal activity.
Evidence quality
How strong the science is behind each call — we tell you when the evidence is thin.
Every ingredient. Classified.
We don’t just score the product — we break down the INCI list and tell you what each ingredient does, whether it’s a concern, and why.
Good
Beneficial for skin. Proven actives, soothing agents, and well-tolerated base ingredients.
Okay
Neutral or standard cosmetic ingredients. Emulsifiers, thickeners, and preservatives within safe concentrations.
Warning
Potentially irritating or comedogenic for some skin types. Certain fragrances, essential oils, and moderate comedogens.
Flagged
Known irritants, high-risk comedogens, or ingredients your profile specifically marks as unsafe. We explain exactly why.
Four metrics, one photo.
Each daily photo is analyzed for hydration, smoothness, calmness, and clarity — each scored 0–100. Your Skin Score is the average of the four. Consistency matters more than perfection: same light, same angle, five seconds. The value is the trendline — not any single day’s number, and never a medical diagnosis.
What we disclose.
We believe you should know how your scores are generated, and what our limits are. No black boxes.
AI-powered analysis
Scores are generated by an AI system trained on cosmetic chemistry principles and regulatory data. Not a substitute for a dermatologist.
Open ingredient database
Barcode scans pull from Open Beauty Facts, a community-maintained database. We supplement with our own OCR when the label is available.
Profile improves over time
Your results get more accurate as you scan more products and check in daily. We infer your skin profile from patterns, not a quiz.
No brand influence
0% of our revenue comes from brands. No sponsored placements, no affiliate deals, no “preferred partner” arrangements. We score what we see.