Pepin Houseplant Serum is a concentrated, 100% natural nourishing serum designed to feed and stimulate the growth of indoor plants. The formula is based on marine algae and is positioned as a simple way to support healthier, stronger potted plants—especially where soil nutrients become limited over time. 

Because plants grown in pots cannot access the same nutrient diversity as they would in nature, Pepin’s Plantcare approach focuses on providing a concentrated blend of natural nutrients to support optimal growth, root development, and foliage resilience. 

Key ingredient focus

• Marine algae / Breton seaweed, harvested and processed in Brittany, used to provide essential nutrients that support healthy plant growth. 

Key features

• 100% natural indoor plant feeding serum 

• Supports plant growth, root strength, and leaf vitality 

• Designed for common green plants (e.g., Monstera, Ficus, Pilea) 

How to use

• Add 3 drops of serum to 250ml of water. 

• Water your plant (with an olla or standard watering). 

• Use every other watering, during the main growing period from March to October.