
Kustie
5 active ingredients identified. We flag active ingredients based on common cosmetic-use and formulation patterns. This is informational only and not medical advice.
No pricing data available yet for Kustie Sun block cream spf90
Exact science-based dupes appear first. When a strict dupe is not available yet, we still show the closest active-match alternatives from the same product category.

La-roche-posay · drugstore
Shares octocrylene, titanium dioxide and tocopherol, but the source's core Mexoryl SX/XL UVA filters are missing, replaced by avobenzone, ethylhexyl triazone and Mexoryl-like terephthalylidene dicamphor sulfonic acid (mexoryl SL) instead.
No price

La-roche-posay · drugstore
Shares octocrylene, titanium dioxide and tocopherol plus soybean oil and HPMC like the source, but the defining Mexoryl SX/XL filters are absent, swapped for avobenzone and other triazine filters.
No price

Mixa · drugstore
Overlaps on octocrylene, titanium dioxide and tocopherol, but lacks the Mexoryl SX/XL combo that defines the source's UVA protection, using avobenzone and ethylhexyl triazone instead.
No price

Mixa Solaire · drugstore
The Kustie's signature Mexoryl SX/XL filters are completely absent here; this Mixa baby lotion relies on a different filter set (bis-ethylhexyloxyphenol methoxyphenyl triazine, avobenzone, drometrizole) with only titanium dioxide and octocrylene in common.
No price

Mixa Solaire · drugstore
Only octocrylene and titanium dioxide overlap; the Mexoryl SX/XL system that defines the source's SPF90 protection is missing, replaced by avobenzone, ethylhexyl triazone and diethylhexyl butamido triazone.
No price
We rank results with INCI-level analysis first, then fall back to the strongest active matches and closest alternatives so every product page still shows comparable options. Fallbacks stay within the same category as the source product, so cleansing balms only surface cleanser dupes instead of adjacent product types. Active Match % measures shared science-backed actives. Formula Similarity % measures total ingredient overlap when full INCI lists are available.