Acne risk — how we score

The Acne risk category is how NordicScan's method flags ingredient signals associated with acne — pore‑clogging (comedogenicity) in the cosmetic context, and diet‑acne patterns in the food context. It is one of the evidence categories our published method uses for a product's 0–100 NordicScan Score — food and cosmetic products alike, each assessed on the categories that apply to its route. This page explains what the category looks at, the sources behind it, and what the method does and does not claim.

A flag in this category means an ingredient our method associates with an acne signal is present — for your research. Every flag shows its true evidence tier — comedogenicity scales, correlation, or reported by users — so you can see how strong the link is. It is not a diagnosis, not a prediction of your skin, and not medical advice.

What this category looks at

• Cosmetic (skin contact). Comedogenic (pore‑clogging) ingredient signals, assessed by exposure route — leave‑on, rinse‑off, lip, eye — because the route materially changes the signal. A present flag reads: "Acne / Pore‑Clogging — flagged under our method," naming the comedogenic ingredient and its tier.
• Food (ingestion). Diet‑acne patterns the peer‑reviewed literature associates with acne — dominated by high‑glycemic‑load and dairy patterns. A present flag reads: "Diet‑acne pattern — flagged under our method," naming the pattern and its tier.

Cosmetic comedogenicity and food diet‑acne evidence never cross‑copy: each context is assessed on its own evidence.

The words we use

Every statement is matched to its evidence tier, and the endpoint is named only where the tier permits:

• A comedogenicity‑scale or human finding is stated with its tier — "flagged under our method: {ingredient, tier}."
• Where the evidence is animal‑only or mechanistic, the flag collapses to a caution‑signal and says exactly that — "Pore‑Clogging caution‑signal — flagged under our method (animal studies | mechanistic evidence)" — without naming a human endpoint the evidence cannot support.
• An absent flag is a fact, never a verdict: "No comedogenic ingredients matched our list" / "No diet‑acne pattern matched our method." It states exactly what was checked — never a verdict about the product or your skin.
• Not enough evidence reads exactly that: "Not enough evidence."

Weak evidence is served and labeled, never omitted and never overstated.

What the score does — and does not — claim

• It does flag comedogenic ingredients by exposure route and diet‑acne patterns from the published literature, each with its receipt and tier, so you can research both sides of an acne question.
• It does not diagnose acne, predict your skin's response, or make a medical claim about any skin condition. Concern signals under our published method, for general research. Not a safety verdict.
• Overlap with the Skin (dermal) category is expected and disclosed — comedogenicity is an acne signal and a dermal signal; each category assesses it on its own evidence.

Related method pages

• How we score — the full method
• Allergens & sensitivities · Digestive · Neurological & behavioural · Metabolic · Endocrine‑active · Carcinogenicity signals · Cardiovascular · Skin (dermal) · Nutrition & positives · Inflammation

Disclaimer

Nordic Scan provides ingredient information and a 0–100 NordicScan Score under our published method, for general consumer research. It is not medical advice and not a medical device, and does not diagnose, treat, cure, or prevent any disease, or determine the safety of any product. Decide for yourself.

NordicScan is operated by The Fred Group, Inc. (d/b/a NordicScan). See how we score for the full method.