Pack size: 30 capsules

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NAD⁺

Nicotinamide riboside 300 mg

91,99 zł

Supports natural NAD⁺ metabolism
Focused on cellular energy and vitality
Supports cellular recovery and response processes

Overview

A considered approach to cellular energy, vitality, and long-term function. Made for adults, NAD⁺ centers on nicotinamide riboside, a precursor the body can convert into NAD⁺, a molecule present in every living cell.

At the heart of the formula / NAD⁺

Thoughtful support. Clear purpose.

01Supports natural NAD⁺ metabolism
02Focused on cellular energy and vitality
03Supports cellular recovery and response processes
04A simple formula for healthy aging
05300 mg of nicotinamide riboside in one capsule

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NAD⁺

Made for your daily routine.

NAD⁺ participates in reactions that let cells use energy from food and in enzymes involved in repair and cellular stress responses. This focused formula provides 300 mg of nicotinamide riboside chloride per capsule.

One capsule daily makes a simple routine for adults interested in cellular energy and healthy-aging research. The plant-based shell makes the formula suitable for vegans.

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NAD⁺

Why does NAD⁺ matter?

NAD⁺ is present in living cells and participates in energy metabolism. It also serves enzymes involved in DNA repair and cellular stress responses. Nicotinamide riboside is a precursor that the body can use to build its NAD⁺ supply.

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NAD⁺

What research informs NAD⁺?

Human studies show that oral nicotinamide riboside enters NAD⁺ metabolic pathways. An early pharmacokinetic study detected changes in NAD⁺-related metabolites at 300 mg. Further trials examined healthy middle-aged and older adults, and muscle studies assessed NAD⁺ metabolism in older people. These biomarker findings informed the ingredient choice; they do not establish that the product increases energy, improves recovery, or extends life.

Ingredients / Doctor Life

Every ingredient. Clearly explained.

Each ingredient, its form and quantity — in one place.

Ingredient amounts for the servings shown in the table.
Ingredient	1 capsule
Nicotinamide riboside	300 mg

*NRV: Nutrient Reference Value

Full ingredient list

Nicotinamide riboside chloride, capsule shell (pullulan).

How to use

Part of your daily rhythm.

How to use

Adults: take 1 capsule with food.

Important information

Do not exceed the recommended daily serving. Food supplements should not replace a varied diet. Maintain a balanced diet and a healthy lifestyle. Do not use in children or during pregnancy or breastfeeding. Store at room temperature, up to 25°C, out of reach of young children.

Science & sources

Understand the formula.

These selected clinical studies show that oral nicotinamide riboside can increase NAD⁺ metabolism in humans, including middle-aged and older adults.

These publications concern the studied ingredients or formulas. They do not all evaluate the finished Doctor Life product, and research results do not guarantee individual outcomes.

01Nicotinamide riboside is uniquely and orally bioavailable in mice and humans

Samuel A. J. Trammell et al.

Nature Communications (2016), 7, 12948. DOI: 10.1038/ncomms12948; PMID: 27721479.

The first human pharmacokinetic study found that oral nicotinamide riboside increased NAD⁺ metabolism in a dose-dependent manner. An effect was also observed after a single 300 mg dose—the amount provided in one NAD⁺ capsule.

Read publication ↗

02Chronic nicotinamide riboside supplementation is well-tolerated and elevates NAD⁺ in healthy middle-aged and older adults

Christopher R. Martens et al.

Nature Communications (2018), 9, 1286. DOI: 10.1038/s41467-018-03421-7; PMID: 29599478.

In a randomized trial in healthy middle-aged and older adults, regular nicotinamide riboside supplementation increased NAD⁺ metabolism. The publication provides evidence of its activity as an oral precursor to this cellular molecule.

Read publication ↗

03Nicotinamide Riboside Augments the Aged Human Skeletal Muscle NAD⁺ Metabolome and Induces Transcriptomic and Anti-inflammatory Signatures

Yasir S. Elhassan et al.

Cell Reports (2019), 28(7), 1717-1728.e6. DOI: 10.1016/j.celrep.2019.07.043; PMID: 31412242.

In a study in older men, nicotinamide riboside reached muscle tissue and increased its NAD⁺ metabolome. Favorable changes in selected inflammatory signatures were also observed, extending research into the precursor's effects at the tissue level.

Read publication ↗

FAQ / NAD⁺

Good questions. Clear answers.

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What is nicotinamide riboside?

Nicotinamide riboside, or NR, is a precursor the body can use to produce NAD⁺. Because NAD⁺ participates in energy metabolism and enzymes involved in cellular function, NR is being studied in cellular metabolism and healthy aging.

Does the name NAD⁺ mean the capsule contains NAD⁺ itself?

No. The active ingredient is nicotinamide riboside chloride, an oral NAD⁺ precursor. The product name refers to the metabolic pathway the formula is designed around.

Why use 300 mg of nicotinamide riboside?

One capsule provides 300 mg. This amount was assessed in a human pharmacokinetic study that reported dose-related changes in NAD⁺-associated metabolites. It provides a defined once-daily serving.

Who is this product for?

The formula is intended for adult women and men interested in cellular metabolism and healthy aging. It may particularly appeal to middle-aged and older adults, who were included in several NR trials.

Does the product provide an immediate energy boost?

No. It is not a stimulant or a caffeine-based product. Its focus is NAD⁺ metabolism, so it should not be expected to provide short-term stimulation.

How do I take NAD⁺?

Adults: take one capsule daily with food. Do not exceed the recommended serving. Each bottle contains 30 capsules, providing a 30-day supply.

Can I combine it with medication or other supplements?

If you take medication, have a chronic condition, or use several supplements, consult your doctor or pharmacist. They can assess the full combination and your health circumstances.

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