Hand Soap, Lavender

The base most products are built on. It carries the other ingredients and has no safety concern.

An amphoteric (zwitterionic) surfactant derived from coconut oil that works well with other cleansers and is milder than anionic surfactants alone. It is widely used in gentle shampoos and body washes with a good safety profile in cosmetic use.

A humectant that draws water into the skin. One of the best-studied, best-tolerated ingredients in personal care.

Lavender essential oil naturally contains linalool, geraniol, and coumarin, several of the recognized fragrance allergen constituents, so it can trigger contact reactions in fragrance-sensitive users even though it is a "natural" ingredient. It is not a general hazard for most people, but those with a known fragrance allergy should treat it like any other essential oil.

A cold-pressed oil from sweet orange peel with a bright, citrus scent, containing furanocoumarins that can cause phototoxic reactions (pigmentation and irritation) when exposed to sunlight. This oil is best reserved for rinse-off products or formulations where sun exposure is unlikely or protected, as it can trigger adverse reactions in reactive individuals on sun-exposed skin.

An undisclosed scent blend that can contain dozens of components. The single most common cause of cosmetic contact allergy, and the blend is not itemized, so you cannot see what is in it.

Cold-pressed oil from olive fruit, valued as a carrier and emollient in skincare formulas. Well tolerated across skin types and delivers fatty acids that support skin barrier integrity.

A plant-derived water or extract used mainly as a soothing humectant filler. Evidence for dramatic skin benefits beyond mild hydration and soothing is limited, but it is well tolerated by most people.

Used in tiny amounts to set a product to skin-friendly pH. No concern at those levels.

Ordinary salt, used in surfactant-based products like shampoos and body washes to adjust viscosity by interacting with the surfactant micelles. It has no meaningful toxicity concern at cosmetic use levels; the main practical downside is that too much can make a formula feel less mild.

A widely used, gentle preservative also common in food. It is generally well tolerated, though it can occasionally cause mild, transient irritation in people with already-compromised or very reactive skin.

The sodium salt of benzoic acid, used as a preservative in both foods and cosmetics. Decades of safety review support its use at typical cosmetic concentrations, with mild irritation the main reported issue in sensitive skin.