Dietary Supplement. Vitamin D Instant Dissolve Tablets. Simplicity. Purity. Efficiency*. No pills to swallow. Place on or under the tongue. Dissolves immediately on contact. Preservative free. "Less is More" Our Instant Dissolve MicroLingual® Tablets may be small but they are full potency! Typical tablets and capsules need to be swallowed and are inefficiently absorbed in the digestive system. MicroLingual® tablets dissolve immediately under the t.