99% Plant based. Septic safe. Formulated with advanced plant powered technology to remove hard water stains and calcium carbonate buildup; for a sparkling clean finish. Our Nature's Promise Free from Toilet Bowl Cleaners are just that - contains no synthetic dyes, no synthetic fragrances and no animal testing. This means you can feel good about making them a part of your home. That's our promise to you. Ingredient Transparency You Can Trust. Ingredient - Water; Purpose: Solvent. Ingredient: Surfactant blend; Purpose: Plant-based surfactant blend. Ingredient: Sodium chloride; Purpose: Mineral salt thickener. Ingredient: Organic acid salt; Purpose: Mineral scum & scale remover. Ingredient: Citric acid; Purpose: Plant-based pH adjuster. Ingredient: Sodium hydroxide; Purpose: Mineral pH adjuster. Ingredient: Lemon verbena essential oil blend; Purpose: Provides aroma. Ingredient: Tris (N-Hydroxyethyl) hexahydrotriazine; Purpose: Synthetic preservative.

Water, Surfactant Blend, Sodium Chloride, Organic Acid Salt, Citric Acid, Sodium Hydroxide, Lemon Verbena Essential Oil Blend, Tris(N-Hydroxyethyl) Hexahydrotriazine.

How to Use: Flush Toilet. Squirt all surfaces under rim and into the toilet bowl coating the area to be cleaned, close toilet lid. Leave to soak 10 minutes. Scrub entire bowl thoroughly with toilet bowl brush and flush.