Using back 2 natural with a comb applicator

[TEG]

Has anyone seen these that also come with a cap that you can screw on for any left back2natural left after using it?

 

[AxC123]

Amazon (comb applicator bottles)

However back2naturals hard to buy...seems discontinued

 

[Hair2019]

Amazon (comb applicator bottles)

However back2naturals hard to buy...seems discontinued

It's not discontinued. You can buy it from Treat Project BV, which is a new company run by someone who used to work for Hair Direct:

Shop - Treat Project B.V.

www.treatproject.nl