I think TikTok stands out as the most effective social media platform for product promotion right now especially for beauty and consumer goods due to its explosive short-form video format, and seamless in-app shopping (TikTok Shop) and also huge age gap within target customers.

I would transform the display area by creating a dramatic, oversized replica of the product which is three times larger than life as the glowing centerpiece, surrounded by a clean cluster of real testers bathed in soft, brand-signature lighting.

Pair this piece with an interactive “before & after” smart mirror station where customers simply stand in front of it. For extra magic, arrange the testers in a color-gradient wave that flows from shelf to floor in the brand’s signature hues.