During Simplicity Salon’s three-hour Coppola keratin smoothing treatment, a formaldehyde-free protein complex, encases hair follicles in a keratinous bond, straightening strands, adding shine, and ensuring spider-shaming levels of silkiness. The treatment eliminates up to 95% of frizz, making hair appear longer while cutting down on morning blow-dry times. Hair must be kept dry for 72 hours after the treatment, precluding hair washing or underwater swimming dance moves. Straight strands last for 3–5 months, depending on care and hair type. Your Groupon includes keratin shampoo and conditioner (a $40 value) for post-treatment maintenance.