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About What's in my jar
What is What's in my jar?
What's in my jar is a skincare discovery and analysis platform that helps you find products that actually work. It uses science-backed ingredient analysis to provide clear, evidence-based reviews for over 50,000 products, covering moisturizers, sunscreens, serums, cleansers, exfoliators, toners, and masks.
What problem does it solve?
It cuts through marketing hype and confusing ingredient lists. You can search any product by name or ingredient, get a detailed review, and even find affordable dupes via its dupe finder. It also includes an ingredient glossary and a decoder that estimates concentrations and irritancy levels from an INCI list.
Who is it for?
Ideal for skincare enthusiasts, consumers with sensitive skin or specific concerns (acne, aging, hyperpigmentation), and anyone tired of trial-and-error. It's not for those who prefer anecdotal recommendations or are not interested in ingredient-level analysis.
Use cases: compare two serums before buying, check if a moisturizer contains fragrance, build a personalized routine with the Skin Guide, or decode a product's INCI list to assess irritancy.
Key features
- Dupe Finder — Compare similar products by formula to save money.
- Ingredient Glossary — Look up any ingredient to see its function and irritancy.
- Ingredient List Decoder — Paste an INCI list to estimate concentrations and irritancy.
- Skin Guide — Follow a guided, goal-based path to build a simple routine.
- Product Search — Search by name or ingredient across 50,000+ products.
- Wishlist & Routines — Save products, build routines, and leave reviews (free account).
SaaSpartout Score
7.2
/10
Editorial score from our review methodology — not user ratings.
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What's in my jar Pricing
What's in my jar pricing: Free to start. Billing model: Free.
For comparison: the median starting price in AI Other is $19/month, measured across 206 tools we track. See the full SaaS Pricing Index →
Free Account
No credit card required. Includes product searches, ingredient decoding, dupe finder, and the ability to save products, build routines, and leave reviews.
Frequently asked questions
How much does What's in my jar cost?
What's in my jar offers a free account, no credit card required. The free plan includes product searches, ingredient decoding, dupe finder, and saving routines.
Is What's in my jar free?
Yes, you can create a free account — it takes about a minute and no credit card is required.
Who is What's in my jar best for?
It's best for skincare shoppers who want evidence-based product reviews, especially those concerned about ingredients or looking for alternatives/dupes.
What are the top alternatives to What's in my jar?
Alternatives include INCIdecoder, Skincarisma, and Paula's Choice Ingredient Dictionary, but What's in my jar stands out for its dupe finder and 50,000+ product database.
What is the main limitation of What's in my jar?
The free version does not allow detailed comparison of products side-by-side? Actually, the free version includes comparison and dupe finder; there are no paid plans mentioned.
