Packed with sensations and tastes, e-liquid manufacturer Roykin, an expert in vape in France, offers a unique experience with its range of e-liquids Roykin Lab, born from a bubbling of ideas and aromas. Made in France. Composition : vegetable glycerin (50%), propylene glycol (50%), flavouring. Alcohol free. Available nicotine strength: 0 - 3 - 6 - 11 - 16 mg/ml.