Spring Valley's Melatonin 5 mg is a straightforward, cost-effective sleep aid. Its 5mg dosage is a common starting point for many individuals experiencing sleep difficulties, though nutritionists often recommend beginning with lower doses (1-3mg) to assess sensitivity. The high number of positive online reviews (2859) indicates user satisfaction with its efficacy. As a single-ingredient supplement, its benefits are specifically tied to melatonin's known properties, primarily sleep regulation. While melatonin has some antioxidant properties that could indirectly relate to anti-aging, and improving sleep can reduce stress, it is not a primary agent for these broader goals.