Olaplex 1 and 2 - worth buying?

[Givemeabreakpls]

Hi there, looking for opinions on olaplex 1 and 2. Is it worth me buying ? Amazon do a salon travel kit but it’s £115 😳 I’ve used olaplex 0 and 3 and they’re good, but would 1&2 turbo power my hair or be a waste of money? For info, I have mid/long length dyed brown hair with golden balayage. It’s dyed regularly (full head of grey hair underneath) and the top layers are looking dry and frizzy.

I've just started using 3, 4, 5 and 6. Pre wash, shampoo, conditioner and post wash treatment. Combined with a silk pillow my hair has transformed after 2 goes.

I wouldn't buy from Amazon there are too many fake products.