A baptism rinse is usually something people use to help them leave a lot of their conditioner in the hair. Instead of rinsing it out, you stick your head briefly under the shower to completely soak and help distribute the product. It's something the cg handbook recommends for wavies if I remember correctly.
3a, dense, fairly coarse, normal porosity and elasticity, just below shoulder
Low poo: Giovanni 50 50
Co-wash: aia, suave coconut, salon care
R O: Tresume Naturals, gvpcb
L I: KCKT, gvpcb
Stylers: cjpp, re : coil, kccc, brhg
Oils: coconut, argan
Experimenting with: curls rock amplifier, pantene mousse