Price Comparison Methodology

Observed prices

Prices shown on Zynava come from participating retailer catalogs and feeds. We call these observed prices: they reflect what our catalog last recorded for that offer. Retailer checkout prices can change at any time — always confirm the final price on the retailer's site before buying.

Price per serving (PPS) — only when verified

We show price per serving only when servings per container are verified from label or catalog facts. We do not:

• Treat package capsule/tablet count as servings
• Invent a default servings number (for example 30 or 1)
• Display PPS when servings are missing, stale, or conflicting

If servings are unknown, you still see the observed product price — without a fabricated per-serving figure.

Preference matching

Search and Ask Zynava can filter by preferences such as ingredient, form, dietary claims, and budget. Results show matching products across participating retailers so you can compare observed prices among options that fit those preferences.

Ranking is never paid

Ordering inside results uses relevance, observed price / value (including verified PPS when available), retailer-reported ratings, and availability. Retailers and brands cannot pay to move a product up in results. Affiliate commissions do not change sort order. See our Editorial Policy.

Affiliate relationships

When you click out and purchase from a retailer, Zynava may earn a commission at no extra cost to you. Details: Affiliate Disclosure.

What we do not claim

• We do not sell or manufacture supplements
• We do not give medical advice, diagnose, or rank products for medical effectiveness
• We do not guarantee the absolute lowest price on the internet
• We do not independently lab-test bottles or verify every label claim

Medical disclaimer: Disclaimer.

Related pages

• How It Works
• Editorial Policy
• Supplement catalog
• llms.txt (AI summary)