If you’re selling an SPF product, don’t forget that SPF testing will probably cost you around $3000-$4000. Note these are ballpark figures. So, the hidden costs of formula development have now pushed your cosmetic start-up costs to about $6000.or example, if it costs you $3 to make your product, shipping costs will easily be $3 so you need to charge $6 per unit just to break even. Another option is to get a booth at a local market and sell your products directly.