Understanding Hair Loss: How Supplements Like NAD+ and Saw Palmetto Support Hair Growth

Why Is My Hair Falling Out? Understanding the Root Causes

Hair loss affects millions of people — and it's rarely just one thing. Whether you're noticing more strands in the shower drain, thinning at the crown, or a receding hairline, the causes are often a combination of genetics, hormonal shifts, nutritional deficiencies, and chronic stress. Understanding why hair falls out is the first step toward doing something about it.

At EndoBody & Skin Clinic, we take a whole-body approach to hair health. That means looking beyond topical treatments and addressing the internal factors that drive hair loss — including the nutrients your follicles need to thrive.

The Science Behind Hair Growth Supplements

Hair follicles are among the most metabolically active structures in the body. They require a steady supply of vitamins, minerals, and bioactive compounds to cycle through their growth phases properly. When those nutrients are lacking — or when inflammation and hormonal imbalances interfere — the follicle miniaturizes and hair thins over time.

Two ingredients that have gained significant clinical attention are NAD+ (Nicotinamide Adenine Dinucleotide) and Saw Palmetto.

NAD+ and Hair Follicle Energy

NAD+ is a coenzyme found in every cell of the body. It plays a critical role in cellular energy production (ATP synthesis) and DNA repair. As we age, NAD+ levels naturally decline — and this decline has been linked to reduced follicle activity and slower hair regeneration. Supplementing with NAD+ precursors helps restore cellular energy in the follicle, supporting the anagen (active growth) phase of the hair cycle.

Saw Palmetto: A Natural DHT Blocker

One of the most common drivers of hair loss — especially in androgenetic alopecia (pattern baldness) — is dihydrotestosterone (DHT), a hormone derived from testosterone. DHT binds to follicle receptors and causes them to shrink over time. Saw Palmetto is a plant extract that has been shown in clinical studies to inhibit the enzyme (5-alpha reductase) responsible for converting testosterone into DHT, helping to slow or reduce hormone-driven hair loss.

Other Key Ingredients to Look For

A well-formulated hair growth supplement should also include:

• Zinc: Supports follicle repair and regulates oil gland function around the follicle.
• Vitamin D: Low levels are strongly associated with hair loss; Vitamin D receptors are found in hair follicles.
• Iron: Iron-deficiency anemia is one of the most common and overlooked causes of hair loss, especially in women.
• Folate & B12: Support red blood cell production and oxygen delivery to the scalp.

Supplements vs. Topical Treatments: Do You Need Both?

Topical treatments like minoxidil work by increasing blood flow to the scalp and prolonging the anagen phase. They're effective — but they don't address the internal nutritional or hormonal factors driving hair loss. Supplements work from the inside out, making them a powerful complement to topical therapies rather than a replacement.

For best results, a combined approach — addressing both internal deficiencies and external follicle stimulation — tends to yield the most noticeable improvement over time.

How Long Does It Take to See Results?

Hair growth is slow. The average hair grows about half an inch per month, and the follicle cycle runs in phases that can last months. Most people begin to notice reduced shedding within 4–8 weeks of consistent supplementation, with visible regrowth typically appearing at the 3–6 month mark. Consistency is everything — supplements only work when taken daily over time.

Our Recommendation: Xtressé™ Hair Growth Gummies

At EndoBody & Skin Clinic, we carry Xtressé™ Hair Growth Gummies — a clinically inspired formula designed to support hair growth from within. Formulated with key ingredients including NAD+, Saw Palmetto, Biotin, and essential vitamins, Xtressé™ is designed for both men and women experiencing thinning or shedding.

They're easy to take, great-tasting, and formulated to deliver results with consistent daily use.

→ Shop Xtressé™ Hair Growth Gummies

When to Seek a Professional Evaluation

Supplements are a powerful tool, but they work best when paired with a proper diagnosis. Hair loss can have many underlying causes — thyroid dysfunction, autoimmune conditions, scalp disorders, and more — that require professional evaluation. If you're experiencing significant or sudden hair loss, we recommend scheduling a Hair Loss Evaluation at our clinic so we can identify the root cause and build a personalized treatment plan.

→ Book a Hair Loss Evaluation at EndoBody & Skin Clinic

Final Thoughts

Hair loss is complex, but it's not hopeless. With the right combination of targeted supplementation, professional guidance, and patience, most people can slow shedding and support meaningful regrowth. Start with understanding your body — and let us help you build a plan that works.