You may well know that deep hair conditioning sachets have become my new best friend. Well, I’ve now found a mini-tub of the stuff and it works out cheaper, so it’s stored ever so neatly in my wash bag ready to jetset.
Also try Umberto Giannini, Scrunching Jelly - its creating a less frizzy finish, although the gel does make hair slightly crunchier than serum, the gel tightens the curl and makes the ends look healthier.
…Aussie bottle (75ml) £1.69, Aussie 
Satchet (20ml) £1.06…
Where i can buy it ?
Hi there Thailand! Great to hear from you. I go to Boots or Superdrug: http://www.boots.com/en/Umberto-Giannini/ which is where the prices are marked from. Umberto’s site is here if you’re needing a more global service: http://www.umbertogiannini.co.uk/ giving more info on shipping and there range of curly products. hope that helps!