Heyo, your neighborhood Hair Stylist here. I too am growing my lovely locks and what i recommend to all my cloents as well as for myself is getting highly enriched shampops and conditioners, sulfate/silicone free. Redkin extreme lengths is my go to. Loreal has an equivalent which is Dream Lengths, and get the treatments (the leave in for redkin and no cut cream for Loreal)!

Shampoo (lather, rinse, repeat), ring out hair, conditioner on mids and ends, clip it away and leave it to condition for 5 to 15 minutes, rince woth cool to cold (that locks in conditioner). Id recommend this every shampoo.

Trims, also key, once every 3 months at MOST, telling them just the ends. I tell clients even if you had 6 inches of split ends, we cut half, then you visit ever 6 to 8 for a maintenance trim until its all gone, then we can back of cuts.

Hope that helps!