Quick view s-factor Tigi S-factor Health Factor EMT Extreme Moisture Hair Therapy Serum. 12 unites MSRP: $66.99 Dry, brittle, frizzy hair??? Damaged from color, sun, hormones...??? Hair Spray Serum Protein: Tigi S-factor Health Factor EMT Extreme Moisture Therapy. Box of 12-10cc spray tubes Condition is... MSRP: $66.99 Add to Cart The item has been added Add to Wish list