Singing the Blues Vape Juice | Clean, Lab-Tested | Kai’s Virgin Vapor

Singing the Blues is a smooth, true-to-life blueberry flavor that delivers a mellow, naturally sweet fruit experience.

This is not an overly bold or artificial blueberry vape. Instead, it captures the soft, gently sweet character of fresh blueberries in a balanced, easygoing profile.

The flavor is delicate yet satisfying—complex enough to remain interesting, but smooth enough to enjoy throughout the day without overwhelming your palate.

An in-house favorite, Singing the Blues is ideal for customers who want a clean, dependable fruit flavor that never becomes tiring.

Highly recommended as an all-day vape.

🫐 Smooth, True Blueberry Flavor

Singing the Blues highlights the authentic flavor of fresh blueberries in a soft, balanced profile designed for all-day enjoyment:

• True-to-fruit blueberry flavor with natural sweetness
• Soft, mellow character suitable for extended vaping
• No artificial sweeteners or flavor enhancers
• No artificial colors
• Never any diacetyl, acetyl propionyl, or acetoin
• No propylene glycol
• Pharmaceutical-grade organic vegetable glycerin
• Vegan, sugar-free, and gluten-free

Unlike conventional blueberry e-liquids that can taste overly bold, artificial, or candy-like, Singing the Blues focuses on smoothness, balance, and authentic fruit character.

🌿 Flavor Profile

Boldness: ★★★☆☆ (3/5)

Sweetness: ★★★☆☆ (3/5)

Complexity: ★★★☆☆ (3/5)

Smoothness: ★★★★★ (5/5)

Throat Hit: ★★☆☆☆ (2/5)

Please note that throat hit is strongly influenced by the nicotine strength you select.

Best For: Blueberry lovers and customers who prefer smooth, mellow, naturally sweet fruit flavors suitable for all-day vaping.

Not sure whether this flavor is right for you? Find your perfect flavor match.

Ingredients

• Organic USP-grade vegetable glycerin
• Nicotine, unless 0 mg is selected
• Organic and natural flavors, including blueberry-derived flavor extracts

This highly concentrated flavor requires no colorants, fillers, diluting agents, or preservatives.

🔬 Extensive Independent Laboratory Testing

Our finished e-liquids undergo extensive independent laboratory testing for a broad panel of constituents relevant to e-liquids and vaping products, including numerous substances identified by the FDA as Harmful and Potentially Harmful Constituents (HPHCs).

Singing the Blues produced a remarkably clean laboratory result: all HPHCs and other compounds included in our testing panel were below the laboratory’s limit of quantification (BQL).

Our testing includes compounds such as diacetyl, acetyl propionyl, acetoin, formaldehyde, acetaldehyde, acrolein, tobacco-specific nitrosamines, heavy metals, ethylene glycol, glycidol, and many others.

We publicly share our laboratory results so you can see exactly what was tested and review the results for yourself.

• View our Lab Test Results
• Learn how to read a vape juice lab report
• Learn what makes vape juice truly clean

🔁 Explore Similar Flavors

If you enjoy smooth, mellow, fruit-forward flavors, you may also like:

• Razzmatazz — bright, juicy raspberry with a delicate tang
• Hawaiian White Guava — delicate tropical guava with soft natural sweetness
• Original Sin — crisp, naturally sweet apple vape juice

More Exceptionally Clean Flavors

While all of our flavors tested incredibly clean, a select group produced especially remarkable results in our extensive laboratory testing: all HPHCs and other compounds included in our testing panel were below the laboratory’s limit of quantification (BQL).

• • Bed of Roses — lush, romantic rose vape juice
  • Coconut Conniption — smooth, lightly creamy coconut vape juice
  • Death by Chocolate — rich, full-bodied chocolate vape juice
  • Menthol Moon Drops — crisp menthol vape juice, beyond the expected presence of menthol itself
  • Romancing the Strawberry — ripe strawberry with a smooth, creamy finish
  • Wicked Watermelon — light, refreshing watermelon vape juice