Check the listing for details. HYGROBEN Premium Beneficial Microbes, 500ml. Condition: New. Listed at 45.99 USD. HYGROBEN Premium Beneficial Microbes, 500ml Hygroben is a microbial root inoculant composed of 5 different bacillus species that are shown to be physiologically compatible with each other and work together to enhance yield. All ingredients in Hygroben are natural and are suitable for ornamentals, vegetable, flowering plants, etc. Fast and Free Shipping You're already purchasing the item. Why pay additional for shipping, especially slow shipping? We get your order shipped out within 1-business day and delivered to your doorstep as quickly as possible. Competitive Pricing With our dynamic pricing model, our prices are always competitive. Our prices are some of the lowest that you will find on the internet. Rest assured that you're getting a good deal when purchasing with us. 30-day Money Back Guarantee We are committed to making sure that you leave this transaction satisfied. If you're unhappy with the product for any reason, you may return it back for your money-back or a replacement within 30 days. No questions asked!