How it works
Supplement research, structured.
Evellan turns scattered product pages into one comparable format — so choosing a supplement takes minutes, not evenings.
Three focused steps
From scattered tabs to a clear shortlist.
Choose a step to begin, or follow the full process from search to shortlist.
- 01
Search
Search by product, ingredient, brand, or category. Every listing is normalized into the same structured format, so results are directly comparable from the first click.
Search the marketplace - 02
Compare
Select up to five products and see them side by side: price per serving, ingredient amounts, formats, certifications, testing, and reviews — with the meaningful differences called out.
Start a comparison - 03
Choose
Set shopping preferences like budget, format, and testing requirements. Matching products explain exactly why they fit — and the alternative finder shows what you would trade off.
Build your shortlist
Product scoring
A transparency score you can audit
Every product gets a 0–100 shopping-transparency score computed from listed data. It is not a health or efficacy rating — and every point is explainable.
- 25%
Ingredient transparency
Are exact amounts and forms disclosed, or hidden in blends?
- 25%
Testing
Is third-party testing listed, with certificates available?
- 20%
Value
Price per serving relative to the category median.
- 15%
Customer satisfaction
Rating level and review volume.
- 15%
Brand transparency
Brand verification and confirmed product information.
Comparison method
Answers behind the numbers
These are shopping calculations and documentation checks, not measures of safety or health benefit. Current examples use fictional demonstration products.
Method page updated September 22, 2026.
How is price per serving calculated?
We divide the listed container price by its listed number of servings and round to two decimals. For example, a hypothetical $30 container with 30 servings is $1.00 per serving. This calculation does not include shipping, tax, discounts, or price changes.
What does the transparency score mean?
It combines ingredient disclosure and listed testing at 25% each, value at 20%, and review and brand information at 15% each. Value compares price per serving with the median within the same catalog category. A higher score reflects these shopping-data rules; it does not establish efficacy or personal suitability.
What does a testing badge verify?
A badge is intended to describe a documented check, such as a listed third-party test or certification. Its scope belongs with the product record. The current badges illustrate the interface using fictional data; no demo badge is evidence that a real product was tested or approved.
Can sponsorship change an organic score?
No. The product score and Finder ranking use defined product facts and shopping preferences. Sponsored placements, if introduced, must be labeled separately and cannot change those organic calculations.
Missing or unverified information is not proof that a feature is absent. Check the current label and seller information before purchasing. Read the product information disclaimer for the limits of these comparisons.
Trust
What verification badges would mean
These example badges describe the documentation a real listing would need. The current catalog is fictional, so its badges do not represent completed verification.
Verified Brand
Would indicate that identity and business information was reviewed by our team.
Product Information Verified
Would indicate that listed ingredients, amounts, and servings were checked against a product label.
Third-Party Tested
Would indicate that independent lab testing documentation was reviewed and is available.
Certification Verified
Would indicate that a claimed certification was confirmed with its certifier.
This demo runs on a fictional catalog; badges shown illustrate the verification system.
Where the AI fits — and where it doesn't
The shopping assistant compares listed product data: prices, servings, ingredients, formats, and testing. It explains its reasoning, and its recommendations can't be bought by brands. It does not diagnose, prescribe, or make health claims — for medical questions, always consult your physician or another qualified healthcare professional.