It's a YSL yellow lipstick.

It's an YSL product. The packaging is so pretty because it sparkles. The color is a reddish-orange. I think it's great to apply these days when there are slight temperature fluctuations between day and night. It's hydrating, so the moisturizing effect is a bonus. The only downside is that it's a bit pricey... but once you use it, I think it's worth the cost, so it's a really good product!