My guess is that the product said company used wasn’t acutally a cosmetic one but Photoshop… both pictures look like the colour hues have been heavily altered.
I’m all with @Gordof
regarding potential irritation.
Your product is anhydrous… this is good regarding stability of ascorbic and kojic acid but might result in a very uncomfortable, sandy feel and punctual irritation where the crystals dissolve on skin. I imagine the balm to be more like a mask which should be removed after maybe 20 minutes or so.
Will it work? If your genetic background is adapted to high solar irradiation, then it’s going to be difficult to do anything effective without causing harm. Maybe think about all the white tourists after a day at the beach. I’d rather have some natural darker tan than look like a cooked lobster (honestly, this is a biased view of mine; I live in Switzerland and the current beauty standard of our youths is different: hourglass curves… impossible to achieve with European genetics). Be happy the way you are because everyone (well, most…) is beautiful the way he/she/it is (or could be, at least on the inside)! Sorry for being a bit sarcastic.
Meilleurs salutations et un très belle soirée à toi!