NAD+, 90 Vegetarian Capsules (100 mg per Capsule)

A supplement that can significantly increase energy levels and, with long-term use, improve quality of life.

I started using this 100 mg NAD+ supplement and I'm very satisfied with the quality. The vegetarian capsules are easy to swallow, and the 90-count bottle is a great value for the price. I’ve noticed a significant improvement in my energy levels and focus throughout the day. Highly recommended as part of a healthy aging routine."

Ingredients Check: I carefully examined the label—it is indeed nicotinamide riboside chloride (NR), which is converted to NAD+ in the body. This is the same active ingredient as in more expensive brands. Protocol Context: I already have NR from California Gold Nutrition (250 mg) in my stack. 21st Century offers a more affordable 100 mg option, which is convenient for dose adjustments or gradual introduction into the protocol. Why NR is important for AIT: NAD+ is a cofactor for all mitochondrial enzymes. In hypothyroidism, NAD+ levels decrease, which worsens energy deficiency. Restoring NAD+ is a direct path to improving energy production at the cellular level. Comparison with CGN: I feel a similar effect—improved mental clarity and physical endurance. The dosage is lower (100 mg vs. 250 mg), but this allows for more precise protocol customization. Bottom Line: High-quality and affordable NR. If you're on a budget, it's an excellent choice. If you need a powerful effect, CGN with a dosage of 250 mg is better.

Been using NAD for a while, for its anti-aging properties. Hadn't tried this one yet and only recently opened it. Always hard to say if it actually does anything, but since other people always tell me I look at least ten years younger than I actually am... who knows. Then again, I've never smoke one cig in my life, so maybe that's it xD

It worked well for me combined with healthy lifestyle and other supplements - i consulted my nuyritionist for recommendation.

Definitely, I’m going to order again. Easy to swallow and I notice a lot of difference.

I've been consistently impressed with the quality. It's a great option for anyone looking for a dependable supplement.

I've had a great experience with this product so far. The capsules are convenient to take, and the quality feels premium. I'll definitely keep buying

So far so good, I think I look younger. I take 3 a day with my first meal, energy has improved.

Good quality ingredients, can help the metabolism and increasing energy