Bronzing drop from the brand Drunk Elephant. Here is the detailed description of the product: 
Instantly adds a warm, bronzy wash of color that flatters every complexion.
Boosts skin’s elasticity and antioxidant defenses against pollution and environmental stressors.
Replenishes essential lipids, supporting healthy skin-barrier function.
The color serum drops are designed to be mixed with any moisturizer, serum, or oil (or each other!) to add the prettiest hint of color.
Formulated at a skin-friendly pH of 4.8.

I’ve used it 4 times so the bottle is still full of product. Original price I paid on Sephora: 45.-