Question: What makes Nairobi® Sensitive Scalp Relaxer System different? Answer: Natural humectants such as Nairo-Plex-9 proteins, fatty amino acids and natural emollients oils that replenish the moisture and strength level. Relaxer PH.12.5 Created by Mixing Calcium Hydroxide (Creme Base) +Guanidine Carbonate (liquid)=Guanidine Hydroxide Non Drying Moisture Replenishing Relaxes evenly Quicker relaxer penetration Rinses quickly Increased sheen Reduced scalp irritation for extremely sensitive scalps Relaxer of choice for color treated hair Leaves hair smooth and silky. These products prices are for licensed professionals only. To have your order confirm, we must have your professional license on file. You can email your licenses information to newsupplyzone@yahoo.com or please call 314-254-7556. Monday through Saturday 9:00 am to 7:00 pm.