Vitamins and nutritional supplements come in many forms: powder, tablet, chewable, capsule, and vegetarian capsule. Manufacturers can produce traditional vitamins, health supplements, herbal remedies, botanicals extracts, and other nutraceuticals. They can produce your own custom blend or formula.
When choosing a supplement and vitamin manufacturer, look for the one that produces your desire form. Not all manufacturers will make all forms. And not all manufacturers will make all types of vitamins.
In general, tablets are less expensive and can hold more milligrams than capsules. However, capsules may release the nutrient in shorter time. Vegetarian capsules are can be kosher and are typically made from starch.
Label design is an important factor when looking for supplement and vitamin manufactures. As we all know, customer purchases are influenced by presentation. Many manufacturers can produce your product under private labeling.
Another consideration is the fill count. How many pills do you want per bottle? Smaller fill count will be more expensive on a per milligram basis because you are using more bottles. However, bottles with smaller count fill will keep the pills fresher for the customer if you put in a freshness seal to your bottles.
Finally, make sure the manufacturer meets high quality control standards. Look for compliance of SOP (Standard Operating Procedure) and GMP (Good Manufacturing Practice) quality control guidelines and US Food & Drug Administration policies. Look for manufacturers that uses high-quality raw ingredients and who perform tests for quality of those ingredients.