About this item

• Bosley Professional hair thickening fibers are keratin fibers that bond securely to existing hair to blend and cover thinning and low density areas of hair for instant Volume, Thickness and fullness
• Bosley Professional Strength is dedicated to giving confidence to both men and women who struggle with fine hair, thinning hair and hair loss, by offering comprehensive hair solutions and superior products.
• Temporarily covers up roots and gray between color treatments. Long lasting, stays in place through humidity, wind and perspiration.