Learn how to use this product X-CLARITY™ Hydrogel Solution, an acrylamide-based (4% acrylamide) solution, is used to create polyacrylamide, a chemically inert and electrically neutral gel matrix. The X-CLARITY™ Hydrogel Solution is compatible for use with the X-CLARITY™ Tissue Clearing System and contains no paraformaldehyde or bis-acrylamide.