The best replacement for resorcinol is benzoyl peroxide.

The best alternatives to resorcinol are rated as following:
★★★★★  benzoyl peroxide

Your alternative for resorcinol is not listed? Suggest!
Speaking about resorcinol, one probably shouldn't forget about ferric chloride.

Other search terms related to resorcinol and their ratings are:
★★★★★ ferric chloride
★★★★ formaldehyde
★★★ phthalic anhydride
You have in mind a companion for resorcinol and it is not yet here? Propose!



Google Trends

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resorcinol
benzoyl peroxide