Niacin—also known as vitamin B3—has long been recognized as an essential nutrient. Today, it’s being rediscovered through a modern scientific lens that emphasizes cellular energy, metabolic efficiency, and nutrient delivery.
At Endurance Products, we believe niacin deserves renewed attention—not as a trend, but as a foundational nutrient when delivered correctly. Advanced formulations like Endur-Acin®, our extended-release niacin, reflect decades of refinement in how niacin works in the body and how it can be better tolerated as part of a daily wellness routine.
Why Niacin Is Essential for Cellular Energy
At the center of niacin’s importance is its role in the production of NAD+ (nicotinamide adenine dinucleotide)—a coenzyme found in every cell of the body.
NAD+ is required for:
-
Converting food into usable cellular energy
-
Supporting normal metabolic processes
-
Maintaining efficient cellular function
Because NAD+ levels naturally decline with age and ongoing metabolic stress, maintaining adequate vitamin B3 intake is essential for individuals focused on long-term energy and vitality.
Niacin supports hundreds of enzymatic reactions involved in carbohydrate, fat, and protein metabolism—making it a cornerstone nutrient for cellular health.
Extended-Release Niacin: Why Delivery Makes a Difference
One of the most common challenges with traditional niacin supplementation is flushing—a temporary sensation of warmth, redness, or tingling caused by rapid absorption.
Extended-release niacin was developed to help address this issue by:
-
Releasing niacin gradually over time
-
Supporting steadier absorption
-
Helping improve overall tolerability
By slowing the release, extended-release niacin is designed to mimic the body’s natural digestive process, delivering niacin more predictably as it moves through the gastrointestinal tract.
This controlled delivery helps many individuals:
-
Maintain consistent niacin intake
-
Reduce the likelihood and intensity of flushing
-
Use niacin more comfortably as part of a daily routine
Endur-Acin® was formulated with this principle in mind—supporting effectiveness and user experience.
Shop Endur-Acin® Extended-Release Niacin
Supporting Healthy Lipid Metabolism—Responsibly
Niacin has a long history in nutrition science related to lipid metabolism. Today, the most responsible and FDA-compliant way to describe this role is that niacin:
-
Supports healthy lipid metabolism
-
Helps maintain cholesterol levels already within the normal range
At Endurance Products, we focus on supporting normal physiological function, not treating disease. Nutrition works best when it’s part of a comprehensive lifestyle that includes balanced eating, movement, and consistency.
Extended-release niacin allows for more even nutrient delivery, which can be especially important for individuals focused on long-term metabolic balance.
Niacin and Skin Resilience for Sunny, Active Lifestyles
Skin is one of the most metabolically active organs in the body. It is constantly renewing itself and responding to environmental stressors such as sun exposure, heat, wind, and dryness.
Vitamin B3—particularly niacinamide—is widely studied and used in skincare for its role in supporting:
-
Skin barrier function
-
Moisture retention
-
Overall skin resilience
From a nutritional standpoint, niacin’s role in cellular energy and NAD+ production helps explain why vitamin B3 is closely linked to skin health at the cellular level.
For individuals living in sunny or outdoor-focused regions, supporting skin resilience is part of maintaining overall wellness—not a cosmetic trend, but a functional priority.
Why Extended-Release Niacin Fits Active, Everyday Wellness
People who value movement, time outdoors, and sustained energy place ongoing demands on their bodies at the cellular level. Supporting:
-
Energy metabolism
-
Nutrient absorption
-
Cellular efficiency
becomes increasingly important over time.
Extended-release niacin supports these systems by:
-
Delivering niacin steadily
-
Mimicking natural digestion
-
Helping reduce discomfort associated with rapid absorption
This makes Endur-Acin® a practical option for individuals who want daily support without disruption.
A Modern Approach to a Time-Tested Nutrient
Niacin’s role in human health has never disappeared—it has evolved.
When delivered thoughtfully, extended-release niacin can:
-
Support cellular energy through NAD+ pathways
-
Help maintain healthy lipid metabolism
-
Contribute to skin resilience and environmental stress tolerance
-
Offer improved tolerability compared to immediate-release forms
At Endurance Products, we believe effective supplementation respects both science and experience. Endur-Acin® reflects that philosophy—combining a legacy nutrient with modern delivery for today’s wellness goals.
Learn about our history and why we started Endurance Products!
Frequently Asked Questions
What is extended-release niacin?
Extended-release niacin is a form of vitamin B3 designed to release gradually over time, helping support steadier absorption and improved tolerability.
Does extended-release niacin help reduce flushing?
Extended-release delivery helps slow absorption, which may reduce the likelihood or intensity of flushing for some individuals. Individual responses may vary.
How does niacin support cellular energy?
Niacin helps the body produce NAD+, a coenzyme required for converting food into usable cellular energy and supporting normal metabolic function.
Is Endur-Acin® suitable for daily use?
Endur-Acin® is designed for consistent use as part of a wellness routine. Individuals considering higher-dose niacin should consult a qualified healthcare professional.