I use All detergent. I asked them about the smaller bottle with same load amount. Received this response: The change in bottle size is due to product compaction—we have removed excess water, making the detergent more concentrated. While the bottle is smaller, the number of loads per bottle remains the same because the recommended dose per load has also decreased. If you compare the dosing instructions on the packaging, you’ll see that less detergent is needed per wash, ensuring the same great cleaning power without waste.