Gotta agree with Wavyone. But I'm not impressed with the Biolage that Sally's GVP is imitating. IMO its a good everyday conditioner, but as a DT its just meh.

You can make your own DT. I've made my own by blending an avocado with whatever oils I have on hand (usually olive oil, sometimes grapeseed and coconut too), honey, sometimes an egg and some lavender EO. Some people put mayonaise in their DT too.
I don't mix my homemade DT with conditioner, but if you need to make it into a paste, mix it with conditioner to make it into a paste to coat your hair. I use the avocado to make the paste, and avocado is rich in emollients and its conditioning on its own.

So after you make the paste, put it on your hair for 30-60 minutes as a prewash treatment, and then wash and condition your hair like normal.
That's me with FSG as my styler!!

3b. fine & thick, coarse, dry, medium porosity. Sucks up product and loves ACVs! FSG is my HG!

Currently using:
Low Poo: TJ's Refresh No Poo: CoWash w/VO-5; Sonoma Soap Company sulfate-free poo
RO: Yes to Cuc; SSC Lavender Condish; Sally GVP LI: Donna Marie Miracle D&C
Style: FSG w/Aussie Instant Freeze & CIAB