Synergy hypoallergenic hair products have been developed by a stylist with over 30 years salon experience and a long history of helping clients find the highest quality, health-conscious products. These efforts have led to this, the most comprehensive and advanced hypoallergenic formulas available. Why is there a need for hypoallergenic products? Multiple medical journals have found that chemical hypersensitivity can be found in 11.2% to 15.9% of the population. Additionally, 31.1% of Americans report adverse reaction to fragranced products. Why SYNERGY Hypoallergenic Hair Care? Fragrance Free Shampoo, Conditioner and Hair Spray. Synergy Silk is gluten-free All products are free of parabens, color dyes and fragrances while maintaining quality hair care. Reduces your cancer risk by eliminating parabens from your hair care routine. Reduces hypersensitivity to allergens that can stimulate the immune system. Protects your long term health by reducing exposure to chemicals that can cause cancer, birth defects and reproductive problems. Safe for children and infants and reduces chemical exposure that disrupt hormones during infancy and puberty. Reduces chemical build up in babies by minimizing their chemical exposure.