The Best Supplements for Hair Growth in 2025

Hair

Sep 10

If you've spent time scrolling beauty blogs or watching hair-care influencers, you’ve no doubt seen the buzz around "miracle" supplements for hair growth. But as we step into 2025, the truth is more nuanced—and more encouraging. Instead of chasing the latest fad, the most effective approach combines targeted supplements, smart lifestyle tweaks, and expert guidance. Here’s what the latest research and dermatologist-backed recommendations highlight as the top contenders for hair health (with a focus on supplements).

1. Vitamin D, Iron & Vitamin C (for Iron Absorption): The Foundational Trio

Scientific reviews and hair-loss specialists—including those in the International Society of Hair Restoration Surgery (ISHRS)—consistently centralize Vitamin D, iron, and Vitamin C (mostly for boosting iron absorption) as the most evidence-supported supplements for healthy hair growth. ISHRS

A large-scale nutrition review also underscores Vitamin D’s potential in reducing alopecia severity and supporting hair regrowth. Iron, protein, and plant-based nutrients like soy and cruciferous vegetables were also found beneficial. New York Post

In practical terms, if you're suspecting dietary deficiency or noticing increased shedding, these should be your first checkpoint—with lab confirmation and professional guidance.

2. Biotin (Vitamin B7): Popular but Often Overhyped

Biotin is ubiquitously promoted for improving hair thickness, nail strength, and skin health. That said, scientific evidence remains sparse and largely limited to cases of deficiency (which are rare in typical diets). Most healthy individuals don’t experience benefits, unless supplemented to correct an underlying deficiency. Wikipedia ISHRS

Dermatologists also caution about high biotin doses interfering with lab tests and emphasize consulting providers before starting supplements. Verywell Health

In short: biotin is safe for most, but may not deliver noticeable hair growth benefits—unless there's documented deficiency.

3. Nutrafol and Omi Well Peptides: Clinically Studied Formulas

Glamour’s 2025 roundup of tried-and-tested hair-growth products named Nutrafol as the top vitamin supplement. Dermatologists and consumers noted its efficacy for thinning strands. Glamour

Nutrafol’s brand sites also highlight its targeted formulas—such as Women’s Balance (for menopausal thinning)—backed by published clinical studies showing visible hair improvement. Nutrafol Amazon

Similarly, Omi Well Beauty Hair Growth Peptides was featured by Women’s Health as its “Best Overall” supplement. Its peptide blend is said to stimulate growth and strengthen fibers, with testers reporting results within 9 weeks. Women's Health

4. Natural Botanicals & Functional Supplements

The Times of India recently highlighted five natural supplements emerging in popularity for hair growth:

Biotin
Saw Palmetto (a natural DHT blocker aiding in pattern baldness and hair density)
Ginseng (boosts scalp circulation with antioxidative and anti-inflammatory effects)
Collagen Peptides (supporting hair structure and strength)
Rosemary Extract/Oil (comparable effectiveness to minoxidil in some settings, plus scalp soothing properties) The Times of India

Harvard Health also flags common but under-studied nutrients (like vitamin E, A, zinc, selenium, riboflavin) as having mixed evidence—but still potential depending on your baseline levels. Harvard Health

Other recent commentary adds that zinc, vitamin D, iron, collagen, and biotin are often highlighted by pharmacists as vital for robust hair growth. The Sun

5. Emerging Players: MSM & Probico’s Proanthocyanidin

There's growing interest in newer ingredients like MSM (methylsulfonylmethane) and Probico, which merit attention:

MSM, a sulfur-rich supplement, showed in small trials improvements in hair shine, volume, and texture, along with skin and nail benefits. Wikipedia
Probico, a formulation containing proanthocyanidin, biotin, and CoQ10, targets hair’s mitochondria to promote keratin synthesis and shift follicles into growth phases by boosting VEGFA and FGF-7. Wikipedia

Though early-stage, these ingredients offer intriguing mechanistic rationales for future innovation.

6. Beyond Supplements: Lifestyle, Timing & Holistic Care

Experts emphasize that supplements alone aren’t magic—context matters. Incorporating consistent routines and optimizing your environment are equally critical:

Timing of nutrient intake: For example, chia seeds—rich in omega-3s, zinc, antioxidants—can support hair health if consumed both morning and night after soaking and pairing with vitamin C. The Times of India
Avoiding harmful habits: High sugar and alcohol consumption can increase hair loss risk, while higher Vitamin D intake offers protective benefits. New York Post
Holistic adjuncts: This includes scalp massages for circulation, gentle styling, stress reduction, balanced diet, and hydration. Supplements like Nutrafol and Viviscal complement these practices. Glamour
Professional evaluation: Dermatologists and trichologists can pinpoint underlying causes—whether hormonal, autoimmune, or deficiency-related—and advise on combinational strategies. GQ

Putting It All Together: A 2025-Ready Plan

Here’s a balanced, evidence-based framework anyone can follow:

Step 1: Get Diagnosed

Visit a dermatologist to check nutrient levels (vitamin D, iron, ferritin, etc.) and rule out medical causes.

Step 2: Supplement Smartly

Focus first on:

Vitamin D and iron (plus vitamin C for absorption).
Then consider clinically reviewed blends:
Nutrafol (age- or condition-matched formula).
Omi Well Peptides for early adopters liking novel peptide tech.
Add natural boosters like saw palmetto, ginseng, collagen, or rosemary as desired.
Explore MSM or Probico with curiosity—though more research is needed.

Step 3: Lifestyle Supports

Eat nutrient-rich, balanced meals.
Include scalp care (massages, gentle cleansing).
Manage stress, sleep well, avoid damaging styling.
Reduce sugar and alcohol—opt for nutrient-dense habits. New York Post

Step 4: Be Patient & Consistent

Expect to see visible changes in 3–6 months, especially for topical/supplement routines. U.S. Dermatology Partners
Reassess with your provider along the way.

Final Takeaway

In 2025, the best approach to hair growth is holistic and science-informed. Ground your regimen first in correcting deficiencies, then layer in clinically studied formulas like Nutrafol or peptide blends. Complement with natural botanicals and emerging ingredients, but always anchor your path in professional evaluation, realistic expectations, and healthy lifestyle habits. After all, true hair health isn't just about what you put in; it's about how you care for your body and mind over time.

Emma McAdams