{"product_id":"vivarin-cafeina-200mg-16-comprimidos-b008fnkkya","title":"Vivarin Tabs 16 Comprimidos","description":"\u003ch2\u003eWhat is Vivarin and how does it help you stay awake?\u003c\/h2\u003e\u003cp\u003eVivarin is a caffeine-based dietary supplement designed to provide a quick and effective energy boost. Each tablet contains 200 mg of anhydrous caffeine, equivalent to a strong cup of coffee. Its fast-acting formula helps combat drowsiness and improve alertness, without adding sugar or calories. This product is ideal for students, professionals, drivers, or night shift workers who need to stay focused during long hours. Its compact and easy-to-carry format makes it a perfect ally to carry in your pocket or backpack. Vivarin contains no carbohydrates or fats, offering a clean source of mental energy.\u003c\/p\u003e\u003ch2\u003eBenefits of caffeine for concentration and energy\u003c\/h2\u003e\u003cp\u003eCaffeine is the most consumed natural stimulant in the world, renowned for its effects on the central nervous system. According to the European Food Safety Authority (EFSA), caffeine contributes to increased alertness and concentration, as well as reduced fatigue and tiredness. These effects are obtained with an intake of at least 75 mg of caffeine. Vivarin, with its 200 mg per tablet, largely exceeds that threshold, providing significant support to maintain cognitive performance during prolonged periods. In addition, caffeine can improve attention span and reaction time, which is useful in tasks requiring precision. It is important to note that these benefits are temporary and do not replace adequate rest.\u003c\/p\u003e\u003ch2\u003eKey ingredients: pure caffeine 200 mg\u003c\/h2\u003e\u003cp\u003eEach Vivarin tablet contains anhydrous caffeine (200 mg) as the sole active ingredient, with no sugars, calories, artificial sweeteners, or other additives. Anhydrous caffeine is a dehydrated and highly concentrated form, allowing for precise dosing and rapid absorption. Its mechanism of action consists of blocking adenosine receptors in the brain, delaying the feeling of sleepiness and promoting a state of wakefulness. Unlike coffee, which can vary in caffeine content depending on preparation, Vivarin offers a constant and reliable dose in each tablet. The excipients used are minimal and ensure product integrity.\u003c\/p\u003e\u003ch2\u003eHow to choose a quality caffeine supplement?\u003c\/h2\u003e\u003cp\u003eWhen selecting a caffeine supplement, it is essential to consider the dosage, purity, and manufacturer's reputation. Vivarin offers 200 mg per tablet, an adequate amount for most healthy adults. Prefer products that clearly specify the amount of caffeine per serving and are manufactured under quality standards such as GMP. Avoid those with unnecessary ingredients or exaggerated claims. Vivarin is an established brand with decades of market presence, backed by rigorous quality control. In addition, its tablet presentation facilitates dosing and storage. Remember that caffeine should not be used as a substitute for sleep and its consumption should be moderate.\u003c\/p\u003e\u003ch2\u003eDosage and usage recommendations\u003c\/h2\u003e\u003cp\u003eIt is recommended to take 1 Vivarin tablet with water every 4 to 6 hours as needed to stay awake and alert. Do not exceed the maximum dose of 2 tablets in 24 hours. This product is intended for healthy adults over 18 years of age. It is not recommended for pregnant or breastfeeding women, people sensitive to caffeine, those with heart conditions, or uncontrolled hypertension. Consume as part of a healthy lifestyle. Food supplements should not be used as a substitute for a balanced diet. Store in a cool, dry place, out of reach of children.\u003c\/p\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eDoes Vivarin contain sugar?\u003c\/h3\u003e\u003cp\u003eNo, Vivarin contains no sugar or calories. It is a pure source of caffeine.\u003c\/p\u003e\u003ch3\u003eHow long does it take to take effect?\u003c\/h3\u003e\u003cp\u003eThe caffeine in Vivarin is rapidly absorbed, with noticeable effects between 15 and 30 minutes after ingestion.\u003c\/p\u003e\u003ch3\u003eCan I take it every day?\u003c\/h3\u003e\u003cp\u003eDaily prolonged use is not recommended. It is best to use it occasionally to avoid the development of tolerance and dependence.\u003c\/p\u003e\u003ch3\u003eDoes it interfere with sleep?\u003c\/h3\u003e\u003cp\u003eCaffeine can affect sleep if consumed close to bedtime. It is recommended to take it at least 4-6 hours before sleeping.\u003c\/p\u003e","brand":"Vivarin","offers":[{"title":"Default Title","offer_id":48763816804506,"sku":null,"price":20.54,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0761\/4831\/0170\/files\/51HB5E8xrKL._AC_SL1359.jpg?v=1784471800","url":"https:\/\/vitaminaspain.es\/es\/products\/vivarin-cafeina-200mg-16-comprimidos-b008fnkkya","provider":"vitaminaspain","version":"1.0","type":"link"}