Different packs can contain the same substances. Before building a routine, place the labels side by side: compare the complete composition, rather than relying only on the name on the front.
01 · Recognise shared ingredients
Melatonin, zinc and selenium appear in both Melatonina Zinco-Selenio and ProVision. The official Melatonina Zinco-Selenio information. The official ProVision information. Combining the packs therefore means considering the total amount of their shared ingredients.
02 · Read what is different
ProVision also includes ingredients such as lutein, astaxanthin, bilberry, maqui and vitamins A and E. The manufacturer describes its role in visual well-being. Pierpaoli composition and information. The nutritional purposes of the formulas do not, by themselves, establish whether combining them is suitable for you.
03 · Prepare a complete comparison
For each product, note the amount per serving, stated daily serving, timing and warnings. Add any other supplements and medicines you take: melatonin and some medicines can affect one another. NHS information on interactions. Bring the packs to a doctor or pharmacist before starting a combination.
04 · Turn questions into a decision
Ask which objective you are working towards, whether ingredients overlap and which plan is appropriate for you. Directions for individual packs do not automatically recommend taking them together. Visit our ProVision and Melatonina Zinco-Selenio pages to gather the information.
Updated on 7 October 2026. General information.