Viviscal and Nutrafol(Viviscal vs nutrafol) are two popular hair supplements people use when their hair feels thin or weak. Both say they help hair grow stronger and reduce shedding. They work in different ways and use different ingredient mixes. This article will explain how each one works, what’s inside them, what studies say, who they might help, safety notes, and which one might be best for you. I will keep each paragraph short and easy to read so it’s simple to compare them side by side.
What is Viviscal?
Viviscal is a hair supplement that centers on a marine protein blend called AminoMar® (a mix from fish and shellfish). The brand says this marine complex, plus vitamins like biotin and vitamin C, helps hair grow and reduces shedding. People often take Viviscal once or twice a day as tablets. The product has been around many years and markets itself on research showing less hair fall and slightly thicker hair for some users.

What is Nutrafol?
Nutrafol takes a broad, root-cause approach. Instead of just proteins, Nutrafol uses a mix of botanicals, adaptogens, vitamins, and omega-3s. These ingredients aim to reduce stress, balance hormones, calm inflammation, and give nutrients for hair. Nutrafol makes different formulas for women, men, and special needs like postpartum hair loss. The company highlights clinical studies and a long ingredient list meant to work together over months.

How Viviscal says it works.
Viviscal focuses on giving building blocks for hair. Hair is mostly protein, and AminoMar® is a marine protein complex that the company says helps hair cell repair and growth. It also adds vitamins like biotin and vitamin C to help the body use iron and make collagen. The idea is simple: give your body the raw materials, and hair will grow better and break less. Many users take it for months to see a change.

How Nutrafol says it works.
Nutrafol targets multiple causes of thinning hair. Its mix includes adaptogens (to help stress), botanicals (to help hormones), and nutrients like collagen and omega-3s (to help cell repair). The brand’s point is that stress, hormones, inflammation, and diet all affect hair. Nutrafol tries to treat those root causes so hair can grow back stronger. People often use it for several months to notice results.

Key Viviscal ingredients.
Viviscal Ingredients Table (Typical Women’s Hair Growth Supplement)
| Ingredient | Type | Purpose |
|---|---|---|
| AminoMar™ Marine Complex | Marine protein blend (shark cartilage & oyster extract) | Main active component; provides protein and nutrients to support hair growth from within |
| Horsetail (Stem) Extract | Plant extract | Contains silica and antioxidants which may support hair strength |
| Millet Seed Extract | Plant extract | Contains nutrients that may help hair health |
| Vitamin C (from Acerola Cherry & Ascorbic Acid) | Vitamin | Helps absorb iron and supports collagen production for healthy hair |
| Niacin (Vitamin B3) | Vitamin | Supports healthy circulation and may help hair follicle health |
| Biotin (Vitamin B7) | Vitamin | Supports normal hair structure and health |
| Iron (from Ferrous Fumarate) | Mineral | Important for cell growth & functioning, including hair cells |
| Zinc (from Zinc Oxide) | Mineral | Helps maintain normal hair health |
| Other ingredients | Inert (fillers, coating agents, etc.) | Help bind tablets and improve stability (e.g., microcrystalline cellulose, magnesium stearate) |
Key Nutrafol ingredients.
| Ingredient | Type | Purpose |
|---|---|---|
| Saw Palmetto Extract | Botanical herb extract | Helps support hormone balance & may reduce DHT that can shrink hair follicles |
| Sensoril® Ashwagandha | Adaptogen herb | Helps manage stress hormones which can reduce hair shedding |
| Marine Collagen Peptides | Protein peptides | Provides amino acids for hair strength & elasticity |
| Curcumin (Turmeric extract) | Antioxidant | Helps reduce inflammation and oxidative stress at the follicle |
| Tocotrienol Complex (Vitamin E form) | Antioxidant | Supports scalp circulation & protects hair follicles |
| Maca (Root powder) | Plant nutrient | May support hormonal balance, especially during menopause |
| Astaxanthin | Antioxidant (microalgae) | May help protect cells & follicles from oxidative damage |
| Vitamins (A, C, D, E) | Essential vitamins | Support overall nutrition and hair growth health |
| Biotin | B-vitamin | Helps support keratin production & hair strength |
| Iodine (from kelp) | Mineral | Supports thyroid function which affects hair growth |
| Zinc | Mineral | Helps maintain normal hair health & immune function |
| Horsetail Extract | Herbal extract | Natural source of silica which can improve hair structure |
| Japanese Knotweed Extract (Resveratrol) | Antioxidant plant extract | Supports circulation & scalp health |
| Black Pepper Extract (Piperine) | Bioavailability booster | May help increase absorption of other nutrients |
| Keratin (sometimes included) | Structural protein | Helps strengthen hair strands (in some formulas) |
Clinical evidence for Viviscal.
Several studies have tested Viviscal and found benefits for thinning hair and shedding. Some trials showed reduced hair shedding after a few months and small increases in hair diameter and hair count over six months. These results suggest Viviscal can help some people, especially those with mild hair thinning who take it consistently. Results are not instant; they usually show after months of daily use.
Clinical evidence for Nutrafol.
Nutrafol also points to clinical studies. Some research and trials from the company and independent teams reported improvements in hair thickness, reduced shedding, and better hair quality over time. Nutrafol’s studies often measure improvements after three to six months. As with any supplement, results vary by person and depend on causes like stress, hormones, and nutrition.
Speed of results.
Both Viviscal and Nutrafol usually need at least three months to show noticeable changes. Many people see clearer results around month four to six. Hair grows slowly, so patience matters. If you stop taking them, any benefits may slowly fade because the supplement is helping while you take it rather than permanently changing genetics or medical causes.
Safety and side effects.
Both brands list common ingredients that most people tolerate. Viviscal contains a marine protein complex, so people with fish or shellfish allergies should avoid it. Nutrafol’s many botanicals can cause mild reactions like stomach upset or interactions with medicines. Always check with a doctor if you are pregnant, nursing, on medication, or have health conditions. Overdosing on some vitamins, like vitamin A or too much biotin, can cause problems, so follow the label dose.
Who might prefer Viviscal?
Choose Viviscal if you want a simpler formula centered on protein and standard vitamins. It can be a good pick for people who think their hair needs more protein and basic nutrients or who prefer a product with a long history focused mainly on the marine complex. It may suit those with clear nutritional gaps and no shellfish allergies. Many users like that it is straightforward and has several long-running studies.
Who might prefer Nutrafol?
Choose Nutrafol if you want a broad, holistic approach that targets stress, hormones, and inflammation as well as nutrition. It can be better for people who think their hair loss links to stress, hormones, or scalp inflammation. Nutrafol’s many ingredients aim to treat multiple causes at once. People who prefer plant-based adaptogens and a targeted formula for specific life stages (like postpartum) often reach for Nutrafol.
Cost and value.
Both products are mid-to-high range for supplements. Prices vary by seller, country, and subscription plans. Nutrafol often costs more because of its large ingredient list and different formulas. Viviscal can be less or similar in price, depending on the version. Think about how long you will take the product (most studies use 3–6 months) and whether a subscription or single buy fits your budget.
How to choose:
steps.
1) Figure out why your hair is thinning — age, stress, hormones, diet, or medical causes.
2) Check for allergies (e.g., shellfish for Viviscal).
3) Speak with a doctor if you have health conditions or take medicines.
4) Try one product for at least three months while watching for side effects.
5) Combine good daily habits: protein-rich food, sleep, lower stress, and gentle hair care.
Realistic expectations.
Supplements can help, but they rarely restore a full head of hair on their own. They often improve hair quality, thickness, and reduce shedding for many people. If hair loss is due to a medical condition like thyroid problems or scarring alopecia, supplements alone may not be enough. Topical treatments, medical checks, or doctor-prescribed drugs might be necessary.
Final verdict
Which wins? Both products have real research and real users who say they help. If you want a simple, protein-focused option and don’t have shellfish allergies,
Viviscal is a strong choice: If your hair thinning seems linked to stress, hormones, or you want a broad botanical and nutrient approach,
Nutrafol is likely better. For most people seeking a single recommendation,
I suggest Nutrafol as the winner when the cause is unclear or multi-factorial because it targets several common root causes (stress, inflammation, hormones) in one formula. If cost, allergies, or a protein-first plan matter more, pick Viviscal instead.