Head and shoulders 8 32oz bottles $35 AR S&S @ amazon
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https://www.amazon.com/dp/B07F38LXDM/ref=cm_sw_r_cp_apa_fab_K45DFbE1CER09?tag=phtwllt-20
Buy 4 (two subscribe and save orders). Total should be just over $50
Apply for $15 p&g rebate
Other types available
https://www.amazon.com/gp/product/B07NFSPQ2H/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&psc=1
Clip $2.40 coupon to get it for $13.32https://www.amazon.com/Head-Shoulders-Anti-Dandruff-Shampoo-Conditioner/dp/B07F3N16KT/?tag=phtwllt-20
$12.65 or less with S&S