The advantages of the glycerin molecule, which is smaller than that of gluconate, are: it improves bioavailability because it can more easily cross the cell membrane; it slows down absorption so that the effect lasts longer; it masks the metallic taste of trace elements; and it stabilizes trace elements, allowing them to be mixed in equal parts and creating personalized formulas. Instructions for use The instructions for use of Ifigen Aluminium (Al) Trace Elements 150ml are to take 1ml (approximately 25 drops) diluted in half a glass of water, once a day. It is recommended to take it preferably on an empty stomach or between meals. It is important to shake the bottle well before use. It is always advisable to follow the manufacturers instructions and consult a healthcare professional before starting any supplement. ingredients Purified water 90%, Glycerol 10%, Sorbic acid: 1g/l and the corresponding mineral in the amount specified above. Pharmaceutical advice Ifigen Aluminium (Al) Trace Elements 150 ml is a trace element supplement containing aluminium. Some precautions to keep in mind when using this product are: 1. Consult your doctor or pharmacist before starting to take this supplement, especially if you have pre-existing medical conditions or are taking other medications. 2. Do not exceed the recommended dose. Follow the instructions for use provided by the manufacturer or as directed by your doctor. 3. Keep out of reach of children. 4. If you experience any adverse or allergic reactions, discontinue use and consult a healthcare professional. Please note that these tips are for informational purposes only and do not replace consultation with a healthcare professional. It is always important to follow the specific instructions and recommendations of your doctor or pharmacist.