Match the product before the price
Comparisons keep product names, formats and exact recipe groups separate. Named aliases come from the maintained catalog; a similar-looking name does not establish an equivalent substance. Blend components and recipes need their own checks.
Choose a labeled amount and quantity before comparing prices. A 10 mg single vial and a ten-vial pack are different purchase quantities. Product pages gather related recipe groups for navigation while keeping each exact group a separate comparison choice.
Listed total prices and unit prices
Total price is the captured listed USD amount before shipping and tax. Where the amount per unit and quantity are both known, total labeled milligrams equal amount per unit multiplied by count. Price per mg divides the total price by that total.
Unknown quantities stay unknown and receive no inferred unit price. A blend’s total mass is not the amount of each ingredient. Reported coupon codes and estimates are shown separately and do not alter numeric listed-price ranking.
Understand the source dates
A direct supplier capture records information from a public supplier page or catalog. An aggregator report records information obtained from a separate comparison source. Capture and import timestamps establish when that source was obtained; they do not prove when the supplier last changed or verified a price.
Refreshes are intended to run once daily. A failed source can retain its last successful data with source status visible. This does not guarantee that every offer is checked daily or that local refreshes run while the computer is unavailable.
Stock and evidence
Stock is retained as in stock, out of stock or unknown according to the source. An aggregator’s stock report is not a checkout verification. A supplier-published certificate or testing link is attributed to its publisher; it is not independent batch verification by Deals on Peptides.
Conflicting or insufficiently identified records can be held out of publication. Catalog coverage is partial and does not establish that every supplier or market offer is included.
History, watches and basket estimates
Price history retains dated source observations for exact selections. Aggregator dates remain source dates. Supplier coverage can vary between dates, so different samples are not presented as a continuous market trend. A deal signal requires at least seven comparable capture dates.
Price watches are stored in your browser and checked when you return or request a recheck. Restock events require a new direct supplier observation changing from out of stock to in stock; unknown stock and failed imports do not establish a restock.
Basket plans compare whole units across up to three suppliers. Unknown shipping stays unknown. Enter destination-specific assumptions or select a published rate after reviewing its conditions. Tax, coupons and free promotional units are excluded. Large searches are bounded and disclose when not every combination was examined.
Promoted picks
Promoted picks are labeled and can appear first. Other suppliers follow the selected sort, while price summaries and lowest-price labels use all matching offers. Read our promoted-placement information.