O&M Frizzy Logic Serum 50ml

This is the 50ml bottle of O&M's shine serum, the same formula as the 100ml in a size that suits a travel bag or a first try. It is a lightweight silicone-and-oil blend for hair that goes fluffy in humidity: the silicones flatten the cuticle, the oils soften what sits underneath.

What's in it

• Cyclopentasiloxane and dimethiconol — the smoothing silicones behind the shine and the slip.
• Certified organic cold-pressed argan kernel oil — softness without heaviness.
• Macadamia seed oil — a native Australian oil.
• Certified organic coconut oil, sunflower seed oil and alpha-tocopherol (vitamin E) — the supporting conditioning agents.

How to use it

One or two drops, warmed between the palms and pressed through the mid-lengths and ends. On damp hair before a blow-dry it smooths as the hair dries; on dry hair it settles flyaways after styling. Add a second dose only once the first has fully absorbed.

Worth knowing

Used lightly it adds shine without weight or greasiness, so fine hair isn't ruled out — the mistake is dosing it like a leave-in conditioner. If you use it daily, the 100ml bottle is the better value.