How we compare prices

1. Discover suppliers, then connect usable catalogues

The active supplier directory includes discovered sources whether or not automated prices are available. Sources with failed connections or unavailable websites are hidden until they recover. Persistently failed or closed sources may be archived after review; historical observations are retained. A directory entry, .com.au domain or Australian location claim is not verification of ownership, dispatch location or product approval. Coverage is ongoing and is not guaranteed to include every supplier.

Connected sources use public catalogue feeds or explicit product data. We respect robots.txt and only fetch approved supplier origins. Login-only listings, quote-only prices, blocked sources, unsupported catalogues and ambiguous products may remain visible in the directory without a usable comparison.

2. Keep identity and strength separate

We standardise case, punctuation, hyphens and confirmed aliases, while keeping nominal vial strength separate from the peptide name. For example, Reta becomes Retatrutide and Tesamorelin 10mg becomes Tesamorelin with a 10 mg size. Confirmed blend aliases share a comparison card.

CJC-1295 with DAC and CJC-1295 No DAC remain separate. Confirmed name aliases help navigation; they do not prove that suppliers’ products are chemically identical. Unclear identities and unclear packs need review rather than an assumed match. Supplier offers remain separate records when product names are grouped.

3. Compare matching sizes and eligible prices

Standard cards show 10, 20, 30 and 40 mg options. A card initially selects its smallest available eligible size, so a 20 mg offer can appear when no eligible 10 mg offer is listed. CJC-1295 with DAC shows its actual listed sizes, including smaller sizes. We do not estimate a price for a missing size.

For each product and size, we select the lowest positive AUD pack price from eligible offers after your filters are applied. Explicitly out-of-stock offers are excluded. Unconfirmed stock can be included unless “Confirmed in stock” is selected. An equal-price tie favours the more recently checked offer.

The supplier, .com.au, specials and stock filters can change the winning offer. Sorting by pack price or price per mg uses each card’s displayed size. Unknown mass, unclear pack quantities, unsupported sizes and unreliable prices are excluded from the comparison cards, even if a source or observation appears elsewhere in the catalogue.

4. Calculate price per mg

Price per mg = observed pack price ÷ explicitly identified nominal mass in mg. For example, a $100 pack labelled 20 mg is displayed as $5.00 per mg. Values are rounded to cents for display; comparisons use the underlying numbers.

For blends, the size is the nominal mass identified from the supplier listing. It does not identify the amount of each ingredient. Check the component amounts, ratio and formulation directly; a shared blend name and total mass do not establish equivalence. Mass is not adjusted for purity, counterions or measured net peptide content.

5. State what is excluded

We compare published AUD pack prices. Shipping, handling, payment surcharges, discount codes, membership pricing, bulk deals and other checkout conditions are not added or assumed. We do not independently establish GST treatment; confirm the final tax-inclusive amount with the supplier.

A “Special” badge requires a source to expose the current price and a higher regular price. It does not independently verify the supplier’s historical selling price. We do not convert overseas currencies or infer a specific variant price from a price range.

6. Preserve observation dates when a refresh fails

Connected supplier checks are scheduled hourly: 24 scheduled checks a day. This is a schedule, not a guarantee that every source is checked successfully each time. The scheduled task checks whether the saved catalogue is due for refresh. Ordinary visitors read the latest saved catalogue without waiting for supplier checks.

Each offer shows when its source price was observed, in Perth time (AWST). Observations over two hours old are marked for rechecking. A failed connection preserves the previous offer and its original date privately but removes that supplier from public comparisons and the active directory until it recovers. A partial catalogue check may retain older observations with their original dates. Supplier discovery and availability are reviewed every 48 hours; this does not guarantee exhaustive market coverage. A supplier’s last check attempt is not necessarily the date of a successful price observation.

“Reload saved data” requests the latest saved catalogue; it does not trigger or force supplier checks. Always verify the chosen variant, stock and checkout total on the supplier website.

7. Keep commercial placements separate

Advertisements are labelled and displayed separately from comparison results. Advertising does not change eligibility, price sorting, supplier coverage status or the cheapest-price selection. Supplier directory entries are free and alphabetical. See the sponsorship and affiliate disclosures for details.

8. Correct errors through review

Use “Report incorrect price” on a comparison card to include the selected product, supplier, size and observation automatically. Tell us what changed and optionally provide the observed replacement price or a source link.

Reports are saved privately for owner review. We check the source before making a correction; a report never directly overwrites a supplier price. You can report size, identity, stock or link problems as well as price errors.