Tigi S Factor Silky Smooth Moisture Serum is every girl’s best friend. Not only does this clever solution protect hair from heat and environmental damage, it also moisturises and leaves a glamorous shine to tired-looking locks. The Tigi S Factor Silky Smooth Moisture Serum contains sunflower seed extract that fights humidity and smooths cuticles for a sexy sleek finish. Tigi S Factor Silky Smooth Moisture Serum is also really easy to use. Simply work the serum into wet or dry hair and let it moisturise and protect your locks throughout the day.