Bio-Oil is a specialist skincare treatment designed to treat stretch marks, scars, uneven skin tone, ageing and dehydrated skin, through regular use.
Best £ per ml price I can find. Some eBay sellers allegedly offering it for less but the feedback suggest they are fake. I know it's controversial whether it's a placebo, not buying for myself, but my friend swears by it.
***Offer may be available in store*** credit to mazt1