Freebase vs Nicotine Salt Guide
What’s the Difference Between Freebase Nicotine and Nicotine Salts?
There are two common forms of nicotine used in E-Liquid: Freebase Nicotine and Nicotine Salt. These differ in chemical structure, strength, how they are absorbed, and which devices they are suited for.
Freebase Nicotine
Freebase nicotine is the standard form found in many traditional E-Liquids. It is produced by removing naturally occurring salts from nicotine, resulting in a more alkaline solution. This can produce a stronger throat sensation (known as a “throat hit”), particularly at higher concentrations.
Freebase nicotine is typically available in strengths up to 18 mg/mL and is designed for use in higher-power vaporisers such as sub-ohm tanks or open-system kits operating at higher wattage.
Nicotine Salt
Nicotine salt is modified by adding an organic acid, lowering the pH and making the nicotine smoother to inhale even at higher strengths. It is intended for use with low-wattage, mouth-to-lung (MTL) pod systems or similar restricted-airflow devices.
Nicotine salts are usually offered in strengths between 10–50 mg/mL and may absorb more quickly. They are not suitable for use in sub-ohm or high-output devices, as this may result in excess nicotine delivery.
Device Compatibility
- Freebase Nicotine: Suitable for tanks and high-wattage devices, including direct-to-lung (DTL) setups.
- Nicotine Salt: Recommended for use in low-power, refillable pod systems and MTL devices only.
Other Considerations
- Nicotine salts may offer longer shelf life due to reduced oxidation.
- Do not use nicotine salts in high-wattage or sub-ohm devices unless specifically designed for it.
- Both forms of nicotine are addictive and regulated for sale only to individuals aged 18 and over.
If you are unsure which nicotine type is appropriate for your device, refer to the product packaging or user manual, or contact our team for factual guidance at customerservice@vapourium.nz.