A good Natural Vegan friendly Anti Frizz Serum

I have been trying out the Noughty To The rescue Serum recently and have been reasonably impressed. It is a serum that I think potentially will be popular being vegan friendly, 97% natural and having no parabens petrochemicals sulphates and silicones.
Result wise I have been happy only a small amount of product needed on towel dried hair and it aids Anti frizz reasonably well. I also use a tiny amount to aid the taking of any fly away hairs once dry
I would be happy to keep using it although I do think for quality price is a little steep. Another down point not easily available I ordered online