Myth 16: “The white crystals around the nostrils are a sign of calcium overdose or too many minerals in drinking water”

Reality: This is false. The white crystals are not calcium, nor are they caused by mineral-rich water. They are a normal physiological secretion called snalt, produced by the nasal salinary glands of reptiles, including chameleons.

These glands are specialized structures that excrete excess sodium chloride (NaCl) and potassium chloride (KCl)—and only these two salts. This process helps regulate hydration and maintain osmotic balance, especially in environments with fluctuating humidity. The result is a cluster of fine, snow-white crystals that may appear in or around the nostrils. It is often mistaken for shed skin or a symptom of illness, but it is neither.

Why the myth is wrong:

• Calcium is not excreted through the nasal glands. It plays no role in the formation of snalt.

• Drinking water, unless heavily contaminated, does not contribute significantly to sodium or potassium levels in reptiles.

• The salts expelled come primarily from the diet. All feeder insects contain trace amounts of sodium and potassium, which the chameleon's body naturally regulates.

What to do: Nothing. Snalt is normal. It will fall off on its own or dissolve with mist or rain. If you're concerned, you can gently remove it with a Q-tip or a drop of water. There is no need to change supplements, water sources, or feeding practices unless there is a separate, verified issue.

Conclusion: Snalt is not a warning sign. It is a sign that your chameleon's body is functioning exactly as it should. It is a natural adaptation, not a problem. Respect it, don't fear it, and avoid unnecessary intervention.