I'm Your Serotonin | Anniversary, Valentine's Day and Birthday Greeting Card for Science-loving Couples

Serotonin is a neurotransmitter that plays a key role in regulating mood, and is often associated with feelings of happiness and well-being. The message on the card is a sweet and romantic way to tell your partner that they are the source of your happiness. The card also features a blank inside to add a personal message, making it a thoughtful and unique gift. This card is a great way to show your love and appreciation for your science-loving partner and your shared interest in science. • Material: 14.77 oz/yd² (350 g/m²) paperboard • Size: 5″ × 7″ (127 × 178 mm) • Vibrant colors • Comes with a complimentary envelope