Professional hair serums and fluids
Shine, smoothness and frizz control, without the grease. Award-winning Liquid Crystals is a salon favourite for a glossy finish, Oil Non Oil gives lasting anti-frizz with no residue, Illuminating Hair Oil-Serum and Bouncy Curls Hair Oil add bounce to curls, and Replenishing Thermal Care Serum protects up to 230°C.
All vegan, cruelty-free and made in Italy.
Frequently asked questions
What's the difference between a hair oil and a serum?
Oils nourish and soften the lengths, while serums are usually lighter and focus on smoothing, shine or protection. Insight's range covers both: oils for curls, lightweight fluids for frizz, a shine serum and a heat protection serum. Read more in is hair oil good for your hair?
Which is best for frizz?
Oil Non Oil controls frizz for hours with an oil-effect finish but no weight, ideal for fine hair and anyone who finds oils too heavy. Liquid Crystals smooths frizz and flyaways and adds brilliant shine. See our guide to the best serum for frizzy hair.
Which hair oil is best for bleached hair?
A lightweight one, such as Illuminating Hair Oil-Serum or Liquid Crystals, used on the mid-lengths and ends. Read our guide to hair oil for bleached hair.
Which serum protects hair from heat?
Replenishing Thermal Care Hair Serum is a lightweight leave-in serum that protects hair from blow-dryers, straighteners and curling irons up to 230°C. Read our heat protectant guide.
Which oil is best for curly hair?
Bouncy Curls Hair Oil adds shine and bounce to waves, curls and coils, and doubles as a pre-shampoo treatment for tighter curls. Illuminating Hair Oil-Serum adds shine, softness and elasticity to all hair types, especially curls.
Can hair oil make hair grow?
No oil has been proven to make healthy hair grow faster. Read what the evidence says about rosemary oil.
Should I apply hair oil to damp or dry hair?
Either works. Liquid Crystals, Oil Non Oil and Illuminating Hair Oil-Serum can all go on damp hair before styling or dry hair to finish. Use a few drops along the lengths and focus on the ends.
Will a hair oil make my hair greasy?
Not if you use a small amount on the lengths and ends rather than the roots. Liquid Crystals, voted Best Serum in the Hair Magazine Hot 100 (Pro) 2022, is designed to add shine without weighing hair down.
Are Insight oils and serums vegan?
Yes. Every Insight product is certified vegan by VeganOK, cruelty-free and made in Italy.
