"Clear gel" refers to a transparent substance that has a thick and slightly sticky consistency. It does not have any color and is often used in products like lotions, hair gels, or skincare items. Full definition
At the very end, he uses a liquid liner with a «tar» consistency and a fine brush to do a final eyeliner swoop, then grooms the brows with clear gel, brow pencil, and eye shadow. (redbookmag.com)
(Unless it's the kind that begins with a smiling physician and a tube of clear gel.) (sciencemag.org)
Lately, I've been using Secret's Clinical Strength deodorant in clear gel and invisible solid. (maeamor.com)