WARNING: This product contains nicotine. Nicotine is an addictive chemical.

Additive Flavor Concentrates
Additive Flavor Concentrates
Additives can give your e-liquid the extra kick it needs to reach its full potential, or they can create a new experience entirely. We sell additives that add smooth, sweet, sour, icy-cool and spicy effects to your mixes. We also sell FlavorWest 100% pure USP grade caffeine powder.


23 Item(s)

Additive Flavor Concentrates


Capella Super Sweet

$1.99
Capella Flavor Drops are water soluble, highly concentrated, multi-purpose flavor concentrates. Our Flavor Drops contain no fats, calories, sweeteners or preservatives. The highly concentrated nature of our Flavor Drops allows us to deliver a superior flavor concentrate, free from preservatives and stabilizers. Capella Flavor Drops deliver honest, undiluted, preservative-free flavor. Capella Flavor Drops are proudly made with the finest ingredients...

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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Flavor Apprentice Sweetener

$1.09
Sucralose based sweetener that will have your taste buds jumping for joy! Specific Gravity: 1.056 Diacetyl: None Flammability: >=93.30 °C Acetoin: None Water Soluble: Yes Acetyl Propionyl: None Origin: USA Suggested Starting Use: 2% - 3% Ingredients: PG, Water, Sucralose  & 3-Hydroxy-2-Methyl-4-Pyrone   Storage: No heat or light  

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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Flavor Apprentice Koolada 10% PG

$1.69
Great for giving your juice that flavorless "Icy" feel. This flavor is Propylene Glycol based! Specific Gravity: 1.04 Diacetyl: None Flammability: >93.33 °C Acetoin: None Water Soluble: Not Determined Acetyl Propionyl: None Origin: USA Suggested Starting Use: 2% - 3% Ingredients: PG & N-Ethyl-2-isopropyl-5- Methylcyclohexanecarboxamide   Storage: No heat or light  

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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Flavor Apprentice Acetyl Pyrazine 5%

$2.39
This flavor is a great support for accentuating that "nutty" taste! Specific Gravity: 1.0784 Diacetyl: None Flammability: > 93.33 °C Acetoin: None Water Soluble: Not Determined Acetyl Propionyl: None Origin: USA Suggested Starting Use: 2% - 3% Ingredients: PG & Acetyl Pyrazine Storage: No heat or light

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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Flavor Apprentice Sour

$1.09
A Sour additive, make anything Sour! Specific Gravity: 1.1071 Diacetyl: None Flammability: >93.33 °C Acetoin: None Water Soluble: Yes Acetyl Propionyl: None Origin: USA Suggested Starting Use: 1% Ingredients: PG & l-Malic Acid Storage: No heat or light  

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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FlavourArt MTS Vape Wizard

$3.40
MTS stands for mellow, thick, and smooth, which is why this flavor adds body and depth to your existing e-liquid creations. Be careful, though, because while Vape Wizard is an e-liquid flavor enhancer, it does not have any flavor on its own. Specific Gravity: 1.0572 +/- Diacetyl: None Flammability: NA Acetoin: No Water Soluble: Yes Acetyl Propionyl: No Origin: US Suggested Starting Use: 2%-3%...

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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Flavor West Sweetener Liquid

$1.09
A great sweetener! Specific Gravity: 1.04 Diacetyl: None Flammability: 102 °C Acetoin: None Water Soluble: Yes Acetyl Propionyl: None Origin: USA Suggested Starting Use: 2% - 3% Ingredients: PG & Sucralose Storage: No heat or light      

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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FlavourArt Sour Wizard

$3.40
Truly pops the flavor on not only FlavourArt fruits but all others as well. A true sour unlike anything seen before. Seems stronger and more distinct than other sour flavorings. Specific Gravity: 1.0448 +/- Diacetyl: None Flammability: NA Acetoin: No Water Soluble: Yes Acetyl Propionyl: No Origin: US Suggested Starting Use: 2%-3% Ingredients: PG, Natural Flavor Storage: No heat or light

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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Purilum Super Sweet

$1.39
A great Sweetener for any occasion! ***This extract is extremely concentrated.*** Specific Gravity: 1.0929-1.1429 Diacetyl: None Flammability: 95 °C Acetoin: No Water Soluble: Yes Acetyl Propionyl: No Origin: US Suggested Starting Use: 1%-2% Ingredients: PG, FEMA/GRAS Flavoring Ingredients Storage: No heat or light

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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Flavor Apprentice Smooth

$1.29
An additive that helps smoothen out a juice!  Specific Gravity: 1.03 Diacetyl: None Flammability: >93.33 °C Acetoin: None Water Soluble: Yes Acetyl Propionyl: None Origin: USA Suggested Starting Use: 1% Ingredients: PG, Triacetin & Artificial flavor  Storage: No heat or light    

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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FlavourArt Polar Blast

$4.15
A flavor enhancer to impart the freezing chill of the Polar Icecaps into your liquid, Polar Blast will send a shiver down your spine whilst allowing your flavors to sparkle through with crystal clear brilliance. Density: N/A Diacetyl: None Flammability: 70°C Acetoin: None Water Soluble: Yes Acetyl Propionyl: None Origin: Italy Suggested Starting Use: 2% - 3% Ingredients: WS3, Frescolat ML Storage:...

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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Purilum WS-3

$2.39
Similar to WS-23, this flavor offers an intense lingering cooling trigeminal effect. The cooling sensation slowly but steadily grows to a lingering cooling mouth feel with a slightly camphoraceous and minty character. WS-3 is approved by a toxicologist as a safe cooling agent. Specific Gravity: 1.0144-1.0644 Diacetyl: None Flammability: 95°C Acetoin: No Water Soluble: Yes Acetyl Propionyl: No Origin: US Suggested Starting Use: 5%-10% Ingredients:...

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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FlavourArt Oakwood

$3.40
Add the mellow and earthy taste of oak to your favorite fruit, tobacco or liquor DIY e-liquid mix, or use just a smidgeon to give your mix a subtle undertone. This is an excellent flavor to mix with, so keep some stocked in your DIY spice rack to complement wine, whiskey, and herbal flavors. Specific Gravity: NA Diacetyl: None Flammability: NA...

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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Flavor West E-Caffeine

$1.49
A real caffeine additive! *Has been known to contain white crystals* Mix in E-Caffeine to base at 5% to get a total volume of 10mg of caffeine. Add more % of E-Caffeine to achieve the desired caffeine level. Not to exceed a total volume of 80mg. Specific Gravity: N/A Diacetyl: None Flammability: N/A Acetoin: None Water Soluble: Yes Acetyl Propionyl:...

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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FlavourArt Magic Mask

$3.40
Reduce the acid precipitation without modifying the pH of your own e-liquid. Magic Mask acts at the tongue receptor level, temporarily reducing the acid precipitation and this improving the overall mouth feel. Due to the fact that this additive is based on changing you overall mouth feel, there is no base percentage. Start with a minimal amount and add more...

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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Nicotine River Flavor Enhancer

$1.39
This is a ethyl Maltol based flavor. Primarily it is a sweetener additive. Named as a flavor enhancer as it does a great job at boosting “thickness” in single flavors. Good for dessert based flavors and more! Specific Gravity: 1.03 Diacetyl: 0 PPM Appearance: Clear colorless Acetoin: 0 PPM Water Soluble: Yes Acetyl Propionyl: 0 PPM Origin: USA Suggested Starting Use:...

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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Flavorah Sweetness

$5.49
Sweetness is a flavorless sweetness enhancer. Non-fructose, sugar free. Specific Gravity: 1.020 Diacetyl: N/A Flammability: 93.33 °C Acetoin: N/A Water Soluble: N/A Acetyl Propionyl: N/A Origin: USA Suggested Starting Use: 2% - 5% Ingredients: N/A  Storage: No heat or light  

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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Nicotine River Sour Solution

$1.39
A sour additive with no noticeable taste. This flavor is meant to increase the sour effect for your tastebuds! Specific Gravity: 1.03 Diacetyl: 0 PPM Appearance: Clear colorless Acetoin: 0 PPM Water Soluble: Yes Acetyl Propionyl: 0 PPM Origin: USA Suggested Starting Use: 2% - 3% Ingredients: flavor ingredient; water; sodium benzoate Storage: No heat or light

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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Inawera Coolada

$3.49
An Icy flavor that gives off an Icy feel! Great for menthol style mixes, mints, and more. Specific Gravity: 1.00-1.04 Diacetyl: N/A Flammability: 105 °C Acetoin: N/A Water Soluble: Not Determined  Acetyl Propionyl: N/A Origin: Poland  Suggested Starting Use: 2%  Ingredients: 2-Isopropyl- N,2,3- Trimethylbutanamide   Storage: No heat or light    

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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Capella Powerful Sour

$1.99
Capella Flavor Drops are water soluble, highly concentrated, multi-purpose flavor concentrates. Their concentrates do not contain any fats, calories, preservatives or sweeteners. Capella Flavor Drops yield exceptional flavor without the use of preservatives and stabilizers due to their highly concentrated nature. Capella Flavor Drops deliver honest, undiluted, preservative-free flavor. Capella Flavor Drops are proudly made with the finest ingredients in...

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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Capella Fizz Pop Enhancer

$1.99
Capella Flavor Drops are water soluble, highly concentrated, multi-purpose flavor concentrates. Their concentrates do not contain any fats, calories, preservatives or sweeteners. Capella Flavor Drops yield exceptional flavor without the use of preservatives and stabilizers due to their highly concentrated nature. Capella Flavor Drops deliver honest, undiluted, preservative-free flavor. Capella Flavor Drops are proudly made with the finest ingredients in...

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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Nicotine River WS-23

$2.49
Finally! It's here! The popular WS23 cooling agent is now at Nicotine River and here to stay. 30% WS-23 Crystals dissolved in Propylene Glycol (by weight) Specific Gravity: .94 Diacetyl: 0 PPM Appearance: Clear colorless Acetoin: 0 PPM Water Soluble: Yes Acetyl Propionyl: 0 PPM Origin: USA Suggested Starting Use: .25% - .5% Ingredients: 30% WS-23 dissolved in PG (by...

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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Capella Sweet Candy Enhancer

$1.99
Capella Flavor Drops are water soluble, highly concentrated, multi-purpose flavor concentrates. Their concentrates do not contain any fats, calories, preservatives or sweeteners. Capella Flavor Drops yield exceptional flavor without the use of preservatives and stabilizers due to their highly concentrated nature. Capella Flavor Drops deliver honest, undiluted, preservative-free flavor. Capella Flavor Drops are proudly made with the finest ingredients in...

Questions or concerns with this product? Visit our forum for live help from members of the growing community and River Supply Co. staff. You can also email us at: Info@nicotineriver.com or call us at: +1-805-375-0401 (8 AM – 4:30 PM PST)

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