Bottles of Ecover washing up liquid and toilet cleaner will carry messages encouraging consumers to sign up to I Count.
SCC is hoping to ramp up awareness among ethically minded consumers, and is hoping the partnership will also generate interest among other potential corporate partners.
The SCC press team is working with Ecover's retained agency Bray Leino Public Relations to drum up publicity to boost both organisation's green credentials.
The promotional packs will be on sale from next month for eight weeks.
SCC launched the I Count campaign last October (PRWeek, 22 September 2006), and has signed up four million people so far.