Read the tested label before reading the filter map
A sunscreen rating belongs to the finished product as tested and labelled for a market—not to a filter list alone. The Atlas can help compare formula structure and identify versions, but the current package remains the authority for protection claims and directions.
01
Start with the market label
Read SPF, UVA or broad-spectrum designation, water-resistance duration, active or ingredient list, and directions on the exact version being used. U.S., Korean, European, and other labels do not use identical regulatory frameworks.
02
Compare finished products, not filter counts
Filter presence does not reconstruct SPF or UVA performance. Concentration, dispersion, film formation, vehicle, and the final test all matter, and most of those variables are not visible in a public ingredient list.
03
Treat wearability as adherence context
Texture and finish may help someone apply a product consistently, but a pleasant feel is not evidence of protection. Coverage, amount, missed areas, activity, and label-directed reapplication remain part of real use.
Ingredient lists can change, list order does not disclose exact percentages, and finished formulas behave differently from isolated ingredients. Confirm current packaging, patch-test when appropriate, and consult a qualified professional for individual medical concerns.
These references support the reading framework and its safety boundaries. They do not validate every mapped product or predict an individual result. Product lists and labels can change.