Frequently Asked Questions

Find answers to common questions about our longevity supplements, quality standards, and ordering process.
The Science Behind Partner In Time

FAQ #17

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Product Information

How should I take these supplements?

NMN (nicotinamide mononucleotide) is a powerful molecule that helps boost NAD+ levels in the body, a vital compound that naturally declines with age. By supporting NAD+, NMN promotes better energy production, DNA repair, and overall healthy aging, making it an important nutrient for long-term vitality.

Is NMN safe to take daily?

We are unable to accept returns on certain items. These will be carefully marked before purchase.

When will I feel the benefits?

We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.

Who should take NMN?

Our products are manufactured both locally and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.

How is Partner in Time different?

Shipping is calculated based on your location and the items in your order. You will always know the shipping price before you purchase.

Usage & Dosage

What is NMN?

Take 2 capsules daily with food, preferably in the morning. For optimal absorption, avoid taking with dairy products or calcium supplements. Consistency is key - take at the same time each day for best results.

When will I start seeing results?

While individual results may vary, many users report increased energy levels within 2-4 weeks of consistent use. For optimal longevity benefits, we recommend continued use for at least 3 months.

Can I take these with other medications?

While our supplements are generally safe, we strongly recommend consulting with your healthcare provider before combining with any medications, especially blood thinners or diabetes medications.

Are there any side effects?

Our supplements are well-tolerated by most people. Some users may experience mild digestive upset when first starting. If you experience any adverse effects, discontinue use and consult your healthcare provider.

Quality & Testing

How do you ensure product quality?

We follow strict GMP (Good Manufacturing Practices) standards and conduct comprehensive third-party testing for purity, potency, and contaminants. Every batch is tested for heavy metals, microorganisms, and pesticides.


Do you provide certificates of analysis?

Yes, we provide certificates of analysis (COA) for every batch. You can request a COA for your specific product batch by contacting our customer service team with your batch number.

Where are your supplements manufactured?

Our supplements are manufactured in FDA-registered, GMP-certified facilities in the United States. We maintain strict quality control throughout the entire manufacturing process.

Shipping & Returns

What are your shipping options?

We offer standard shipping (5-7 business days) and expedited shipping (2-3 business days). Free standard shipping is available on orders over $75 within the continental US.

Do you ship internationally?

Yes, we provide certificates of analysis (COA) for every batch. You can request a COA for your specific product batch by contacting our customer service team with your batch number.

What is your return policy?

We offer a 60-day money-back guarantee. If you're not satisfied with your purchase, you can return unused portions for a full refund within 60 days of purchase.