i was actually just thinking about this. too funny. Ever since i started using shikakai bar soap, my hair feels exactly how it feels after a relaxer. I'm 5 weeks post and I wash 3 - 4times a week. so its been almost 20 washes later, it still has the same slip. I'm amazed.
For me, if my hair deviates from that silkiness it is lacking moisture.I think the combination of what I do for my regimen keeps my hair like that. It wasn't always like that, but it is now. I know my leave ins salerm 21 and lacio lacio contribute to keeping that feeling. I must also say that getting a dryer that dried my hair evenly without frying it made a great improvement(Pibbs).