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Addressing Your Xandro Lab Concerns: Honest Reviews and Responses

At Xandro Lab, we value transparency and customer feedback. We’ve seen some Xandro reviews — both positive and negative — and we want to address concerns while explaining how our supplements work in simple terms. 

Whether you’re looking for a Xandro NMN review or wondering about a Xandro magnesium glycinate review, we’ve got you covered.

Who Is the CEO of Xandro Lab?

Shantanu (‘Shan’) Kumar, a biohacker and entrepreneur, founded Xandro Lab as a science-backed longevity brand. With an MBA and tech background, he focuses on evidence-based health supplements and scaling direct-to-consumer (DTC) brands. A fitness advocate, Shan believes daily exercise boosts stress management, immunity and focus — practicing what he preaches.

Now, here at Xandro, we’re proud of all the positive feedback and reviews we’ve received from customers. We truly enjoy hearing how people are enjoying boosting their health with Xandro supplements. 

We value transparency and responsibility and, with over 3K 5-star reviews, there are, of course, those who may not be happy with or experience what others do when taking our supplements. This is why we wanted to address some of the negative Xandro reviews and provide explanations and our reasoning.

Answering Negative Feedback in Xandro Lab Reviews

1. Pure NMN Powder

Customer Concerns:

• “Didn’t work for me – I took this for a while, but didn’t really see any benefits from it so I stopped.”
• “Fatigued after taking NMN powder.”
• “Small bottle… not even ½ full.”

Our Response:

NMN (Nicotinamide Mononucleotide) is a longevity supplement that supports cellular energy. While some people experience immediate benefits, others need at least 3–4 weeks to notice changes. Fatigue can occur as your body adjusts — this is normal.

Regarding Xandro Lab NMN Powder bottle size, the mg dosage is clearly labelled — we fill bottles based on weight, not volume.

Tip: For best results, pair NMN with Resveratrol (boosts NAD+ activation). Check out our Xandro Lab NMN guide for more details.

Further Reading: Are Xandro Lab Supplements Right for You?

2. Magnesium Glycinate

Customer Concerns:

• “Been taking 2 tabs about 3 hours before bed and didn’t work.”
• “Will try to take in the morning – After taking this, I have insomnia.”
• “Taken about 2 weeks, there was no results.”

Our Response:

Magnesium glycinate is one of the best forms of magnesium for relaxation and sleep, but it only works if you’re deficient. If you don’t see improvements after 3 weeks, you may already have sufficient magnesium levels.

For sleep, take 2 capsules 1 hour before bed. If you experience insomnia, which is unusual when taking magnesium, try taking it earlier in the day as some people metabolise it differently, but we suggest speaking with your doctor to help with this and see if there’s something else in your life contributing to the insomnia. 

Remember: The recommended daily dosage of elemental magnesium is between 400–420mg for men and 310 and 320mg for women. Each capsule of Xandro Magnesium Glycinate contains 100mg of elemental magnesium. It’s designed to supplement your eating habits each day, eating a wide range of foods that contain magnesium and top yourself up on those days you can’t quite get enough.

Learn all about magnesium and how you can use Xandro Lab Magnesium Glycinate 500mg to benefit your health in our blogs.

3. Calcium AKG & Other Supplements

Customer Concerns:

• Calcium AKG: “No noticeable benefits whatsoever after several months.”
• Trans-Resveratrol: “Have been eating for a month. However don’t see much difference in antioxidant benefits.”
• BCM 95® Turmeric Curcumin: “Not working for me – I don’t feel any relief on my pain.”
• Spermidine: “Used over a month with no noticeable effects.”

Our Response:

• Calcium AKG supports cellular health but works subtly over time — think of it as a long-term investment.
• Trans-Resveratrol’s antioxidant benefits can take time to show noticeable effects, so it’s important to be consistent with the recommended dosage and consider other factors that may impact your antioxidant levels, such as diet and lifestyle habits. 
• Turmeric Curcumin reduces inflammation, but results vary based on diet, genetics and severity of pain.
• Spermidine takes time to experience effects, even up to three to six months of daily use. Genetics may also play a role in how well your body uses spermidine for autophagy. It’s also not a quick fix. You may not feel it, but it’s likely working.

Further Reading: How Long Do Xandro Lab Supplements Take to Work?

End Note

So, do Xandro Lab supplements work?

Xandro supplements are high quality and contain the right ingredients to benefit your health, but it’s important to remember that supplements aren’t magic pills. They work best when they’re taken consistently (1–3 weeks minimum, often requiring over 3 months), are paired with a healthy lifestyle and are adjusted based on your personal needs

Check out more Xandro Lab reviews to see what works for others and always speak with your doctor if unsure.