THE TOOLKIT · FREE · NO ACCOUNTS
Free tools.
No signup.
Five tools we built because we wanted them. All free, no email, no login. We add one every few months — if you have a suggestion, hit reply on the newsletter.
Most Used
TOOL 01
The skin type quiz.
Eight questions, a no-guilt routine, and honest product picks — matched to your skin type, budget, and how much effort you want to commit. Built on dermatology research, not vibes.
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New TOOL 02
Ingredient decoder.
Check if your skincare ingredients can be safely used together. Select up to 16 actives and see conflicts, cautions, and great pairings at a glance.
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TOOL 03
Shade matcher.
Find your perfect TIRTIR cushion foundation shade in 4 questions. We match your undertone, depth, and finish to every shade in the lineup.
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TOOL 04
Ingredient matrix.
Visual 16×16 grid showing how every skincare active interacts with every other. Green, yellow, red at a glance — click any cell for the explanation.
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Reference TOOL 05
Ingredient glossary.
Searchable directory of every K-beauty ingredient. Benefits, ratings, compatible skin types, and which products actually contain them.
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More tools, always free.
We're building a dupe finder, a barrier-damage self-assessment, and a routine logger. Subscribe to the letter and you'll know when each ships.