Many ingredients and chemicals must be handled with care, with gloves for protection, and must remain on the skin for the minimum time necessary to do their job, then be removed by rinsing.

A few examples:

• Isopropyl Alcohol. Used as a solvent or disinfecting agent, it can cause skin dryness and irritation.
• Sodium Lauryl Sulfate (SLS). A common surfactant that can cause skin and eye irritation.
• Parabens. Preservatives used to prevent microbial growth, but can cause skin irritation in some individuals.
• Formaldehyde and Formaldehyde Releasers. Used as preservatives, they are known for their irritating properties and potential carcinogenicity.
• Phthalates. Used to increase the flexibility and softness of plastic materials, have been linked to endocrine disruption.
• Oxybenzone. A chemical UV filter that can cause allergic reactions and skin irritation.
• Glycolic Acid. An alpha-hydroxy acid used for exfoliation, but can cause irritation if left on the skin for too long.
• Ammonia. Often found in hair dyes, it can cause irritation to the eyes and respiratory tract.

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