Doctor Life Flush-Free Niacin 250 mg — 100 capsules

Pack size: 100 capsules

ShopVitamins and minerals

Doctor Life

Flush-Free Niacin 250 mg

Inositol hexanicotinate

64,99 zł

Supports normal energy metabolism
Helps reduce tiredness and fatigue
Supports normal nervous system function

Overview

A high-strength vitamin B3 formula with comfort in mind. Flush-Free Niacin 250 mg uses inositol hexanicotinate, a form that joins six molecules of nicotinic acid to one molecule of inositol.

At the heart of the formula / Flush-Free Niacin 250 mg

Thoughtful support. Clear purpose.

01Supports normal energy metabolism
02Helps reduce tiredness and fatigue
03Supports normal nervous system function
04Helps maintain normal psychological function
05Helps maintain healthy skin

Doctor Life / 01

Flush-Free Niacin 250 mg

Made for your daily routine.

This form differs from free nicotinic acid and is intended to avoid the characteristic niacin flush—sudden redness and warmth. It offers an option for people who find that reaction uncomfortable.

Niacin supports normal energy metabolism, nervous system and psychological function, and healthy skin and mucous membranes. It also helps reduce tiredness and fatigue. This focused formula is taken once daily.

Doctor Life / 02

Flush-Free Niacin 250 mg

Why does niacin matter?

Niacin, or vitamin B3, is involved in the body’s use of energy from food. It is needed to make NAD and NADP, coenzymes used in many cellular reactions. Adequate intake supports nervous system and psychological function, skin, and mucous membranes. This formula uses a form intended to avoid the characteristic niacin flush.

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Flush-Free Niacin 250 mg

What does research say about Niacin Flush-Free 250 mg?

Niacin is a precursor to NAD and NADP, coenzymes involved in energy metabolism and many other cellular processes. Inositol hexanicotinate is used as a source of vitamin B3 in supplements. These physiological roles do not establish that all niacin forms have identical absorption or clinical effects.

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
Niacin	250 mg (1562%*)

*NRV: Nutrient Reference Value

Full ingredient list

Niacin (inositol hexanicotinate), capsule shell (hydroxypropyl methylcellulose).

How to use

Part of your daily rhythm.

How to use

Adults: take 1 capsule daily with a meal.

Important information

Do not exceed the recommended daily serving. Food supplements should not replace a varied diet. A balanced diet and a healthy lifestyle are recommended. Store in the original packaging, away from sunlight and out of reach of young children.

Science & sources

Understand the formula.

These publications explain niacin's roles in energy metabolism, nervous system function, and NAD coenzyme production. They also include an assessment of inositol hexanicotinate as a supplemental source of vitamin B3.

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.

01B Vitamins and the Brain: Mechanisms, Dose and Efficacy - A Review

David O. Kennedy

Nutrients (2016), 8(2), 68. DOI: 10.3390/nu8020068; PMID: 26828517.

This review describes the roles of B vitamins in energy production, the synthesis and repair of genetic material, and processes essential to brain function. Niacin contributes to these systems, making adequate intake relevant to nervous system function and everyday well-being.

Read publication ↗

02NAD+ metabolism and its roles in cellular processes during ageing

Anthony J. Covarrubias, Rosalba Perrone, Alessia Grozio, Eric Verdin

Nature Reviews Molecular Cell Biology (2021), 22, 119-141. DOI: 10.1038/s41580-020-00313-x; PMID: 33353981.

The authors describe NAD as a central coenzyme in energy metabolism and in cellular processes related to metabolic balance and DNA repair. Niacin is one of the precursors the body uses to make NAD, helping explain its broad physiological role.

Read publication ↗

03Inositol hexanicotinate (inositol hexaniacinate) as a source of niacin (vitamin B3) added for nutritional purposes in food supplements

EFSA Panel on Food Additives and Nutrient Sources added to Food (ANS)

EFSA Journal (2009), 7(2), 949. DOI: 10.2903/j.efsa.2009.949.

This EFSA scientific opinion evaluates inositol hexanicotinate as a source of niacin for food supplements. It describes the compound's structure and the gradual release of nicotinic acid, the concept behind the Flush-Free formula.

Read publication ↗

FAQ / Flush-Free Niacin 250 mg

Good questions. Clear answers.

Talk to us ↗

What does “Flush-Free” mean?

A niacin flush is sudden redness, warmth, burning, or tingling that can occur with free nicotinic acid. This product uses inositol hexanicotinate, a form intended to provide niacin without that characteristic reaction.

Who is this product for?

It is designed for adults who want to supplement niacin in relation to energy metabolism, nervous system and psychological function, and tiredness. The form may interest people who have found the flushing associated with nicotinic acid uncomfortable.

Does the absence of a flush mean it is not working?

Flushing is a vascular response associated mainly with free nicotinic acid, not a measure of niacin’s nutritional value. Its absence does not establish effectiveness either. This formula uses a form intended to make daily use more comfortable.

How do I take Niacin Flush-Free?

Adults: take 1 capsule daily with a meal. Do not exceed the recommended serving. Each capsule provides a stated 250 mg of niacin, so check other products for overlapping vitamin B3 before combining supplements.

Why is the serving 1,562% NRV?

NRV is a reference for food labeling, not an instruction to increase the serving. Each capsule provides a stated 250 mg of niacin. Follow the recommended 1 capsule daily and account for vitamin B3 in other supplements.

How many days does a bottle provide?

Each bottle contains 100 capsules. At 1 capsule daily, it provides 100 days of use—more than three months.

Can I take it with medication?

If you take medication, especially medication affecting blood lipids, glucose, blood pressure, or liver function, consult your doctor or pharmacist. Seek advice during pregnancy or breastfeeding and if you have a chronic condition.

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