Prices, sources and retailers

What this site does

Powder, tablets and ready-mixed bottles have different pack sizes. Use the mixing instructions to work out the prepared volume before comparing costs. Write down the amount of powder or number of tablets per serving, and the volume of water stated on the label. Multiply that prepared volume by the number of servings in the pack.

Where product facts come from

Published catalogue records come from retailer affiliate feeds available to our publisher account and reviewed for this site. Each product page identifies the retailer, exact product reference where supplied and observation date. We reuse recorded information rather than relabelling it as newly checked.

What a recorded price means

A price is an observation of a particular item or variant on the date shown. It may have changed. Delivery, promotions and availability must be confirmed with the retailer. We do not invent earlier prices, fill gaps in price history or describe a single observation as a trend.

How products appear

The catalogue is alphabetical. Different variants retain their own identifiers; matching names alone do not establish the same product. Inclusion is not a recommendation or a claim of hands-on testing. Our coverage is limited to the records we can publish and is not the whole market.

Affiliate funding

If you choose to visit a retailer using a labelled affiliate button, we may receive a commission. The retailer handles your order, payment and returns. Commission does not turn a missing specification into a verified fact.

Corrections

Tell us the page URL, the exact model or variant and the source of the correction. Contact the site team.