Best Seller | Thermal Serum by Rusk for Unisex - 4.2 oz Serum This product is ideal for use before using high-heat styling tools such as blow dryers, curlers and straighteners to prevent damage to your locks over time, and to ensure your efforts get the best end result possible. | Thermal Serum by Rusk for Unisex... ... more Thermal Serum by Rusk for Unisex - 4.2 oz Serum This product is ideal for use before using high-heat styling tools such as blow dryers, curlers and straighteners to prevent damage to your locks over time, and to ensure your efforts get the best end result possible. | Thermal Serum by Rusk for Unisex... OneStopPlus | | $26.39 $18.85 go to store |