This 100ml bottle is a trial size of Dunking Biscuit's Feelin' Bubbly pH Neutral Shampoo, using the same high foaming, anti-marring formula as the full-size 500ml bottle. It carries the same Tutti Fruity scent and the same pH neutral chemistry, which the maker lists as matte safe and vinyl wrap safe and states will not compromise existing waxes or sealants. The maker's dilution guidance for the full-size product is 20 to 30ml per 20 litre bucket, so a 100ml sample is best used as a way to test the scent, foam and finish before committing to a larger bottle. It pairs naturally with a clean wash mitt and a two-bucket wash routine.