This great adhesive solvent is just perfect for the person having difficult time with getting adhesive residue off of their lace or poly cap.Rapid Release was created by "Walker Tape". The people who created C-22 solvent. This product was re-invented for those of us who hate to clean off the white glue marks on the cap. PLEASE REMEMBER, DO NOT SPRAY DIRECTLY TO SKIN. This product is only to be applied to the hair system. I personally fill a med/large plastic bowl with sealed lid and fill with about 24 to 36 ounces of Rapid Release and just drop my lace hair system right in it and let it soak for about 20 minutes. I use a terry wash cloth and wipe away any foreign matter still on cap. Once done i seal lid and put away for next time i need to do the same. The used product in bowl is still very good for several more cleanings.