The “science” states that the effects of collagen within the body typically take at least 4-12 weeks, however some of our customers are seeing results in as little as 2-3 weeks. If you don’t see results it’s unlikely that the product is not working but more likely that the benefits are happening on the inside rather than the out. All that said, many people are reporting improvements in pain within days; growth of hair and nails within a week and some people are reporting hair re-growth within a month. Many people are reporting faster healing from injuries, enhanced performance in sports, a reduction in sensitivities to food or food allergies, improvement in mobility and better sleep and mental alertness.