The Science of Spray & Forget

Spik and Span active ingredient is a type of Salt

How Does it Kill Moss Mould and Lichen?

We have tested many different chemicals and combinations over the past 10 years to refine Spik and Span’s Spray and Forget product. We have literally sprayed 1000’s of litres over 1000’s of square metres. Our formula has been used in the commercial market and now available direct to the consumer.

Get serious about moss mould and lichen get Spik and Span – spray…. and forget. Bleach free and harnessing a type of salt.

Benzalkonium chloride, also known as BZK, BKC, BAC, alkyldimethylbenzylammonium chloride and ADBAC, is a type of cationic surfactant. It is an organic salt classified as a quaternary ammonium compound. It has three main categories of use: as a biocide, a cationic surfactant, and as a phase transfer agent. ADBACs are a mixture of alkylbenzyldimethylammonium chlorides, in which the alkyl group has various even-numbered alkyl chain lengths.

Bioactive Agents


Known for it’s antimicrobial activity, benzalkonium chloride is an active ingredient in many consumer products:


  • Pharmaceutical products such as eye, ear and nasal drops or sprays, as a preservative
  • Personal care products such as hand sanitisers, wet wipes, shampoos, deodorants and cosmetics
  • Skin antiseptics, such as Bactine and Dettol
  • Some disinfectant solutions, such as post-piercing ear disinfectants.
  • Throat lozenges and mouthwashes, as a biocide
  • Over-the-counter single-application treatments for cold-sores, and fever blisters
  • Burn and ulcer treatment
  • Spray disinfectants for hard surface sanitization
  • Cleaners for floor and hard surfaces as a disinfectant, such as Lysol
  • Laundry detergents and treatments
  • Softeners for textiles
  • Same active ingredient as competitors such as Wet and Forget, 30 seconds
  • Moss Mould and Lichen removal products for clearing of algae, moss, lichens from paths, roof tiles, swimming pools, masonry, etc.

Benzalkonium chloride is also used in many non-consumer processes and products, including as an active ingredient in surgical disinfection. A comprehensive list of uses includes industrial applications.

An advantage of benzalkonium chloride (unlike ethanol-based antiseptics or hydrogen peroxide antiseptic), is that it does not cause a burning sensation when applied to broken skin when used correctly.