Testo Prime is a natural testosterone booster. Natural testosterone boosters are safe and it is better to ensure checking about the product, its labeled ingredients, and their manufacturing in FDA-regulated facilities. 4 capsules per day are recommended doses by Testo Prime. Pre Lab Pro is a pre-workout formula that claims to increase blood flow to your muscles. Pre Lab Pro offers nutrients that help in muscle toning and speeding up muscle synthesis. Pre Lab Pro includes minerals, amino acids, and vitamins that support you throughout the workout and is in a powdered form.