Buy some squalane.
Put it in a bottle with a dropper, if you wish. You’re done.
Yep, it’s 100% squalane in that pretty little bottle, and they’re charging you $31.22 for 1 ounce or 30 ml. I found 50 ml or 1.7 ounces olive squalane at Lotioncrafter for $7.26 and Neossance squalane for $5.59 there. If you’re in Canada, Voyageur Soap & Candle has 30 ml for $5.95.
I think that’s the easiest duplication I’ve ever done… 🙂