I tested The Ordinary's £8 caffeine serum – it made my skin look instantly brighter

Key facts

• The Ordinary's caffeine serum is priced at £8.
• The serum is designed to combat signs of tiredness.
• The reviewer found the serum made their skin look instantly brighter.

The Ordinary's caffeine serum, priced at £8, has been tested and found to combat the signs of tiredness. According to the reviewer, the serum resulted in instantly brighter-looking skin.