Show pic

Try some Translucent White silicone by Axiom please.

Whatever you use definitely use painters tape to get a perfect neat thin line

Clear.

Clear

Painter's tape isn't a good method. Push, don't pull, a neat bead of silicone, then mist it with Windex. Spit on your finger and smooth it to perfection please. Wipe up the Windex overspray immediately without touching the bead.

Translucent White will be superior to clear.

Joseph are you sure for a non professional? If op is doing it themselves it's hard to get a neat effect

I'm sure. If you screw it up, try again please.

The mistake a lot of people make with caulking starts when they over cut the end of the tube and lay down way too wide a bead. Start with a small nip on the tube and get a decent dripless caulk gun, not the cheapest one on the rack.