ILNP Mutagen (H) is a moderately warm-toned, light-medium duochrome with a metallic finish. It is a permanent nail lacquer that retails for $12.50 and contains 0.4 oz.
ILNP Mutagen (H) Holographic Ultra Chrome Nail Polish ($12.50 for 0.4 oz.) has a soft, almost grayish base paired with multichromatic shimmer that shifted between light, lime green to emerald green to dusty teal to soft violet. There was also very fine holographic sparkle throughout, which really blended beautifully with the multichrome effect.
The polish had a fluid, smooth consistency that applied evenly to my nails and did not pool along the edges. Per the brand, it has its maximum coverage in two to three coats. In the swatches, I've applied two coats and then one layer of Zoya Armor top coat (though I added Zoya Anchor as a base coat when I tested for longevity), which yielded nearly opaque coverage--a third coat would be ideal for someone who wanted absolutely full coverage but likely unnecessary! I wore this shade for 10 days and had minor tip wear and no chips.
As a FYI, the brand offers this shade with and without holographic micro-flakes--shades designated with "(H") include the holographic micro-flakes.
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.
Butyl Acetate, Ethyl Acetate, Nitrocellulose, Adipic Acid / Neopentyl Glycol / Trimellitic Anhydride Copolymer, Acetyl Tributyl Citrate, Isopropyl Alcohol, Stearalkonium Bentonite, Acrylates Copolymer, Styrene / Acrylates Copolymer, Silica, Benzophenone-1, Trimethylpentanediyl Dibenzoate MAY CONTAIN Titanium Dioxide (CI 77891), Iron Oxides (CI 77489, CI 77491, CI 77492, CI 77499), Red 6 (CI 15850), Red 7 (CI 15850), Red 34 (CI 15880), Yellow 5 (CI 19140), Blue 27 (CI 75510), Black 2 (CI 77266), Mica, Aluminum Powder (CI 77000)
Disclaimer: Ingredient lists are as available by the brand (or retailer) at the time of publishing. Please always check product packaging, if it exists, for the ingredient list applicable to the product you're purchasing, or the brand or retailer's website for the most up-to-date ingredient list.