Mack Snow

What Mack Snow looks like

Black and white high contrast

The Mack Snow locus is an incomplete dominant trait that reduces yellow pigmentation and increases white. Three phenotypes exist based on zygosity: Wild type (no Snow gene) appears normal with yellow/orange coloration. Heterozygous Mack Snow (Ss) hatches with white bands instead of yellow and displays reduced yellow pigmentation throughout life, though some yellow may return with age. Homozygous Super Snow (SS) is dramatically different. A white or very pale body with bold black spotting and distinctive solid black "eclipse-like" eyes (though genetically distinct from the Eclipse gene). Super Snow is one of the most visually striking leopard gecko morphs. The Snow gene is an extremely popular building block for combo morphs due to its ability to brighten and clean up body color.

How to identify it: Mack Snow (Ss): Hatchlings have white bands where normal geckos have yellow bands. Adults show reduced yellow. More white/cream background with normal dark spotting. Some individuals regain yellow tones as they mature. Super Snow (SS): White to pale gray body with bold black spots/speckles. Eyes are solid dark (often mistaken for Eclipse but genetically distinct). Dramatically different from single-copy Mack Snow. No yellow anywhere on the body. Very distinctive phenotype even as hatchlings.

How Mack Snow is inherited

Mack Snow follows a incomplete dominant inheritance pattern, carried on the Mack Snow allele (locus Snow).

Combo morphs with Mack Snow

• Mack Snow Eclipse

  Combination of Mack Snow (heterozygous) and Eclipse (homozygous). The Snow gene reduces yellow and increases white on the body, while Eclipse produces solid dark eyes. The result is a high-contrast black and white gecko with solid black eyes. A visually striking combination that serves as a foundation for more complex combo morphs.

• Super Snow Eclipse

  Combination of Super Snow (homozygous Snow) and Eclipse (homozygous). Both the Snow gene and Eclipse gene contribute solid dark eyes, and Super Snow already produces dark eyes at the homozygous state. The addition of Eclipse ensures fully solid eyes across all lighting conditions. Body is white to pale gray with bold black spotting. One of the most dramatic black-and-white leopard gecko phenotypes.

• Mack Snow Bell Albino

  Combination of Mack Snow with Bell Albino. The Snow gene reduces yellow and the Bell Albino reduces melanin, producing a pale, pastel gecko with the distinctive ruby-red eyes of Bell Albino. The reduced yellow from Snow enhances the lavender pastel tones that Bell Albino tends to produce.

• Super Snow Bell Albino

  Combination of Super Snow (homozygous Snow) with Bell Albino (homozygous). Super Snow removes all yellow and adds bold speckling, while Bell Albino removes dark melanin and contributes ruby-red eyes. The result is a pale white to lavender gecko with ruby-red to pink eyes and minimal spotting. The Bell Albino ruby eye combined with the Super Snow white body is a highly sought-after look.

• Dreamsicle

  Dreamsicle is Enigma + Mack Snow + RAPTOR (Tremper Albino + Eclipse). The combination of Snow (reducing yellow), Enigma (random pattern), and RAPTOR (red eyes, reduced melanin) produces a white and orange gecko with scattered pattern and solid red eyes. One of the more complex leopard gecko combos. HEALTH WARNING: Carries Enigma Syndrome neurological risk.

• Mack Snow Tremper Albino

  Combination of Mack Snow (heterozygous or homozygous) with Tremper Albino (homozygous). The Snow gene reduces yellow and increases white while the Tremper Albino removes dark melanin. The result is a pale, high-contrast gecko with brown/chocolate spotting on a white to cream background. A popular and accessible combo morph.

• Super Snow Rainwater Albino

  Combination of Super Snow (homozygous Snow) with Rainwater Albino (homozygous). Both traits lighten the animal. Super Snow removes yellow, Rainwater Albino removes melanin and produces an overall washed-out look. The result is an extremely pale, almost ethereal white gecko. The least common of the three Super Snow Albino combinations due to Rainwater being the rarest albino strain.

• Super Snow RAPTOR

  Combination of Super Snow (homozygous) with RAPTOR (Tremper Albino + Eclipse). The Super Snow removes all yellow and the Tremper Albino removes dark melanin. Eclipse produces solid eyes. The result is a white-bodied gecko with ruby-red solid eyes. Similar to Diablo Blanco but achieved through Snow genetics rather than Blizzard. A highly sought-after combo.

• Super Snow Tremper Albino

  Combination of Super Snow (homozygous Snow) with Tremper Albino (homozygous). The Snow gene at homozygous removes all yellow pigmentation, and Tremper Albino removes dark melanin. The result is an almost entirely white gecko with Tremper Albino-type eyes (lighter, pinkish). Minimal to no spotting. One of the cleanest all-white leopard gecko phenotypes achievable without Blizzard genetics. Super Snow provides the solid dark eye base, but the Tremper Albino eye lightening partially overrides this, producing a lighter eye than standard Super Snow.