General Safety Information of ingredients:

This article provides useful tips on how to figure out which ingredients are safe use.

Polyurethane-1 is a copolymer consisting of isophthalic acid, adipic acid, hexylene glycol, neopentyl glycol, dimethylolpropanoic acid, and isophorone diisocyanate monomers.
A maximum concentration of 15% used in nail products according to survey conducted by Council in 2016
The main functions of polyurethane-1 include artificial nail builders, binders, film formers, hair fixatives, plasticizers, and surface modifiers

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The safety of Stearalkonium Bentonite has been assessed by the Cosmetic Ingredient Review1 (CIR) Expert Panel. The CIR Expert Panel evaluated the scientific data and concluded that Stearalkonium Bentonite was safe for use in cosmetics and personal care products under the present practices of use.
The National Industrial Chemicals Notification and Assessment Scheme (NICNAS) of Australia concluded that stearalkonium bentonite did not pose an unreasonable risk to public health when used in cosmetic products at concentrations up to 5%; this was reported as the expected maximum concentration of use specified by the notifying companies.

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Propylene glycol is a synthetic liquid substance that absorbs water. The Food and Drug Administration (FDA) has classified propylene glycol as an additive that is "generally recognized as safe" for use in food. It is used to absorb extra water and maintain moisture in certain medicines, cosmetics, or food products. It is a solvent for food colors and flavors, and in the paint and plastics industries

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Hyaluronic Acid enhances the appearance of dry or damaged skin by reducing flaking and restoring suppleness. Hyaluronic Acid is also used to thicken the aqueous (water) portion of cosmetics and personal care products.

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