I have 4b hair and been using nexxus for over 10 years (even before I understood HOW to use the products!) and I love the products. I have used pretty much ALL at some point and here's my review:
THERAPPE: excellent moisturizing poo hands down, a staple for me
HUMECTRESS: uber excellent, can't describe how this conditioner has saved my hair time and time again is soo many different ways . . . (I've decided my hair LOVES mineral oil, glycerin, petrolatum, lanolin, etc -- when I used products without these ingredients, my hair dries out)
HEADRESS CREAM: very good leave in(I alternate between headdress, salerm 21, giovanni direct)
HEADRESS SERUM: good. nothing but 'cones and no different than other serums out there, last forever 'cause I go lite on 'cones (I have had the current bottle for like 3 years now . . . )
ENSURE: great as final rinse (this condish not moisturizing enough for me to use by itself, but good following another condish, like humectress)
EMERGENCEE: uber excellent hard protein, like humectress, can't describe how this has been a saving grace over the years
KERAPHIX: very good soft protein (I alternate with aubrey's GPB)
EPITOME: very good, I only use this when I do a nexxus "omni-pak" (cocktail of humectress, keraphix, epitome, and botanic oil) -- the small bottle lasts me forever 'cause I use like once every 6 weeks or so.
BOTANOIL: very good poo, but I prefer therappe (use this every once in a while whenever I want to switch up so the small size last forever)
ALOE RID: excellent (gentle) clarifying poo (small size last me forever 'cause I only clarifying with this like once every 12 weeks or so)
SIMPLE SILVER: uber excellent "blue poo" for grey hair (works like a clarfiying poo but focus on removing that "yellow cast" from grey hair -- small last me forever 'cause I use once every 12 weeks - alternate with aloe rid)
ASSURE: OK. used once and left my hair dry and never used again - gave away 'cause way to drying for me headdress
BOTANIC OIL: excellent oil, I rotate this with others (jojoba, castor, avacado, etc.)
Wow, I think I got everything. HTH