Hair, skin and nail vitamins are formulas that combine biotin with the vitamins and minerals your body uses to build keratin and collagen, such as vitamin C, zinc and iron. Beauty Within+™ is ours: each 2-capsule serving provides 5,000 mcg of biotin, sixteen vitamins and minerals and a 359 mg botanical blend. This spotlight explains what each key nutrient does, the exact amounts on the label, how to take it and the cautions to read first.
Key takeaways
- Each 2-capsule serving of Beauty Within+ provides 5,000 mcg of biotin, sixteen vitamins and minerals and a 359 mg botanical blend.
- The label directs adults to take two capsules daily and not to exceed the recommended dose. Women who are pregnant or lactating and anyone taking medications should consult a health care professional before using any nutritional product. The NIH Office of Dietary Supplements lists medicine interactions for the iron, zinc, magnesium, folic acid, vitamins B6, C and D and biotin in Beauty Within+ (including levothyroxine, levodopa, some antibiotics, methotrexate and anti-seizure medicines), and cautions for people with hemochromatosis or kidney problems.
- Vitamin C, zinc and iron matter as much as biotin, because the body uses them to build collagen and keratin and to carry oxygen to growing tissue.
- The formula contains iron and soy, and its botanical blend includes barley grass, which contains gluten.
- Hair grows about 1 cm a month (Grafinger et al., 2024) and fingernails about 3.5 mm a month (Yaemsiri et al., 2010), so changes from any hair, skin and nail routine take months to show.
What are hair, skin and nail vitamins?
Hair, nails and the outer layer of skin are built mostly from keratin, a tough protein, while the deeper layer of skin relies on collagen for its structure. Both are made from amino acids in your diet, and both depend on helper nutrients. Vitamin C is required to make collagen. Zinc is involved in protein building and cell division. Iron carries oxygen to fast-growing tissue such as hair follicles. B vitamins, including biotin, help turn food into energy and building material.
A hair, skin and nail formula gathers those helpers in one place. It does not replace protein or a varied diet, and it cannot override genetics or a medical cause of hair or nail change. What it can do is help cover nutrient gaps that show up first in the tissues that renew constantly.
Meet Beauty Within+
Beauty Within+ combines biotin with vitamins, minerals, and a botanical blend that includes horsetail rather than presenting biotin as a stand-alone answer. Each 2-capsule serving of Beauty Within+ provides 5,000 mcg of biotin, sixteen vitamins and minerals and a 359 mg botanical blend. It is formulated to support healthier hair and improved elasticity of hair, as a nail strengthening formula, and to nourish skin.*
Beauty Within+ is third-party tested, every batch, for purity and potency, and manufactured in USA with globally sourced materials in an NSF-certified, GMP-certified, FDA-registered facility. You can read how that works on our standards page.
The key nutrients in these hair, skin and nail vitamins
Vitamin C, zinc and iron matter as much as biotin, because the body uses them to build collagen and keratin and to carry oxygen to growing tissue. The table shows the main nutrients per 2-capsule serving, as printed on the label, with a plain line on what each one does in the body.
| Nutrient | Per serving | What it does in the body |
|---|---|---|
| Biotin | 5,000 mcg | Coenzyme for processing fats, carbohydrates and protein |
| Vitamin C | 120 mg | Required to make collagen; antioxidant |
| Zinc | 7 mg | Supports protein building and cell division |
| Iron | 14.5 mg | Carries oxygen in the blood to growing tissue |
| Vitamin D | 20 mcg | Supports normal cell growth and calcium use |
| Vitamin A (as beta-carotene) | 120 mcg RAE | Supports normal cell growth, including skin cells |
| Vitamin E | 14 mg | Fat-soluble antioxidant |
| B vitamins (thiamin, B6, folate, B12, pantothenic acid) | See the full label | Energy metabolism and new cell formation |
| Botanical blend | 359 mg | Horsetail, bamboo, nettle, saw palmetto and seven more ingredients |
The formula also lists calcium, magnesium, manganese and potassium. The botanical blend is a proprietary blend: blend totals are on the label; the amounts inside each blend are not. For every line of the panel, including the full B-vitamin amounts and all eleven blend ingredients, see Hair, Skin and Nails Label Explained: Inside Beauty Within+.
Why 5,000 mcg of biotin?
The label lists that amount as 16,667% of the Daily Value. The NIH Office of Dietary Supplements lists an Adequate Intake of 30 mcg a day for adults, and most people meet it from food, so the amount in hair, skin and nail formulas is far above basic needs. Research on extra biotin shows the clearest benefit in people who were low in it, which is why this formula pairs biotin with the other nutrients that hair, skin and nails rely on. Our article Biotin for Hair, Skin & Nails: How Much Do You Actually Need? goes deeper.
How to take Beauty Within+
The label directs adults to take two capsules daily and not to exceed the recommended dose. That serving is the whole day's amount, and the 60-capsule bottle holds 30 servings, a 30-day supply. The label sets no time of day, so choose a time you will remember. Many people take it with breakfast, which also suits the fat-soluble vitamins (A, D and E) in the formula. Our step-by-step routine is in How to Take Hair, Skin and Nails Vitamins: A Beauty Within+ Routine.
Hair and nails grow slowly. In a study of 22 healthy American young adults, fingernails grew an average of 3.47 mm a month (Yaemsiri et al., 2010), and hair grows on average about 1 cm a month (Grafinger et al., 2024), so any change you can see from a hair, skin and nail routine takes months to reach the nail tip or show along the hair.
Who should read the label twice
Diet, goals, allergies, medication, health history, and the rest of the supplement stack all affect whether it fits. Check these points before you start:
- Allergens and diet. The formula contains iron and soy, and its botanical blend includes barley grass, which contains gluten. The vitamin D3 is sourced from lanolin and the vitamin A beadlets are of animal origin, so it is not suitable for a plant-based diet.
- Other supplements. If you already take a multivitamin or another product with iron, biotin, folic acid, zinc, vitamin B6, vitamin D or magnesium, add up the totals across every label. Per serving, Beauty Within+ gives 14.5 mg iron, 880 mcg folic acid, 7 mg zinc, 8 mg vitamin B6, 20 mcg vitamin D and 120 mg magnesium. The NIH Office of Dietary Supplements lists adult upper limits (ULs) of 45 mg iron, 1,000 mcg folic acid from supplements and fortified foods, 40 mg zinc, 100 mg vitamin B6, 100 mcg (4,000 IU) vitamin D, and 350 mg magnesium from supplements and medicines (the magnesium UL does not count food). One serving alone supplies 880 of those 1,000 mcg of folic acid, so a second product with folic acid can push the total over the limit; the ODS Folate sheet notes a concern that high folic acid intakes might mask a vitamin B12 deficiency. The ODS Vitamin B6 sheet adds that the European Food Safety Authority set a lower adult limit of 12 mg of vitamin B6 a day.
- Pregnancy, nursing and medication. Women who are pregnant or lactating and anyone taking medications should consult a health care professional before using any nutritional product. If any adverse reactions occur, discontinue use and consult a health care professional. Keep out of reach of children. Do not use if safety seal is damaged or missing. Store in a cool, dry place.
- Medicines and health conditions. The NIH Office of Dietary Supplements fact sheets list these interactions for nutrients in this formula. Iron can reduce the absorption of levodopa and levothyroxine (some levothyroxine labels advise against taking it within 4 hours of an iron supplement), and proton pump inhibitors can reduce iron absorption and, with long-term use, lower magnesium. Zinc and magnesium can interfere with quinolone and tetracycline antibiotics taken at the same time, zinc can reduce the absorption and action of penicillamine, and magnesium can reduce the absorption of oral bisphosphonates. Thiazide diuretics increase zinc and magnesium loss in urine and, combined with vitamin D, might lead to high blood calcium. Vitamin D can also interact with orlistat, statins and steroids. Vitamin C may interact with chemotherapy, radiation therapy and niacin-statin therapy. Folic acid can interfere with methotrexate taken for cancer and might lower the levels of antiepileptic medicines, and sulfasalazine reduces folate absorption. Cycloserine, antiepileptic medicines and theophylline can lower vitamin B6 levels, and anticonvulsants can lower biotin levels. The ODS Iron sheet adds that people with hereditary hemochromatosis have a higher risk of iron overload, and the Vitamin C sheet notes that high doses of vitamin C could worsen that overload. The Iron sheet also notes that the American Association for the Study of Liver Diseases recommends that treatment of hemochromatosis include the avoidance of iron and vitamin C supplements, and Beauty Within+ contains both. The ODS Magnesium sheet says the risk of magnesium toxicity "increases with impaired renal function or kidney failure," and the Vitamin C sheet says high vitamin C intakes could contribute to kidney stones, "especially in individuals with renal disorders." Share this label with your pharmacist or clinician.
- Blood work. High-dose biotin can also interfere with some laboratory tests; share the full label with your clinician and laboratory team.
IRON WARNING: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under six (6). In case of accidental overdose, call a doctor or poison control center immediately.
Where Collagen Complex+ fits
Beauty Within+ contains no collagen. If you also want a collagen source, Collagen Complex+ provides a 1,800 mg multi-source collagen blend per 3-capsule serving. Because one is a vitamin and mineral formula and the other is a protein, they do not duplicate each other. Each keeps its own directions: Beauty Within+ is two capsules daily, while the Collagen Complex+ label directs adults to take 1 to 2 servings (3 to 6 capsules) per day or as directed by your healthcare professional. The Collagen Complex+ label also says: Do not exceed recommended dose. Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement. Keep out of reach of children. Do not use if safety seal is damaged or missing. Store in a cool, dry place. Note that Collagen Complex+ contains fish (cod) and egg.
Frequently asked questions about hair, skin and nail vitamins
What does Beauty Within+ ask me to take each day?
Two capsules daily, which is one full serving. The label says not to exceed the recommended dose, and it is for adults only. A bottle holds 60 capsules, a 30-day supply.
Do hair, skin and nail vitamins actually work?
They work best at filling gaps. Research on biotin shows the clearest benefit in people who were low, and nutrients such as iron, zinc and vitamin C matter most when intake is short. If your diet already covers them, expect a modest role rather than a dramatic change.
Is Beauty Within+ gluten-free or vegan?
No on both counts. Its botanical blend includes barley grass, which contains gluten, and it contains soy. The vitamin D3 comes from lanolin and the vitamin A beadlets are of animal origin, so it is not suitable for a plant-based diet.
Can I take it with a multivitamin?
Possibly, but add up the totals first. Beauty Within+ already provides iron, biotin, folic acid and other vitamins and minerals, and a multivitamin may repeat them. One serving of Beauty Within+ holds 14.5 mg iron, 880 mcg folic acid, 7 mg zinc, 8 mg vitamin B6, 20 mcg vitamin D and 120 mg magnesium, against adult upper limits, as listed by the NIH Office of Dietary Supplements, of 45 mg iron, 1,000 mcg folic acid from supplements and fortified foods, 40 mg zinc, 100 mg vitamin B6, 100 mcg (4,000 IU) vitamin D and 350 mg magnesium from supplements and medicines, not food. Folic acid leaves the least room, so check it first. Show both labels to your healthcare professional or pharmacist before combining them.
How long until I notice anything?
With Beauty Within+ or any hair, skin and nail formula, new growth takes months to show, because hair grows on average about 1 cm a month (Grafinger et al., 2024) and fingernails about 3.5 mm a month in healthy young adults (Yaemsiri et al., 2010). If you see sudden shedding or nail changes, talk with a clinician rather than waiting.
Related reading from our Wellness Hub
- How Many Hair, Skin and Nails Capsules Should I Take?
- Biotin vs Collagen for Hair, Skin and Nails: How They Differ
- Does Biotin Affect Blood Tests? What to Know Before Bloodwork
Sources
- NIH Office of Dietary Supplements: Biotin, Fact Sheet for Health Professionals, updated 2022
- NIH Office of Dietary Supplements: Vitamin C, Fact Sheet for Health Professionals, updated 2025
- NIH Office of Dietary Supplements: Zinc, Fact Sheet for Health Professionals, updated 2026
- NIH Office of Dietary Supplements: Iron, Fact Sheet for Health Professionals, updated 2025
- NIH Office of Dietary Supplements: Vitamin D, Fact Sheet for Health Professionals, updated 2025
- NIH Office of Dietary Supplements: Folate, Fact Sheet for Health Professionals, updated 2022
- NIH Office of Dietary Supplements: Vitamin B6, Fact Sheet for Health Professionals, updated 2023
- NIH Office of Dietary Supplements: Magnesium, Fact Sheet for Health Professionals, updated 2026
- Almohanna HM, et al. The Role of Vitamins and Minerals in Hair Loss: A Review. Dermatol Ther. 2019
- Yaemsiri S, et al. Growth rate of human fingernails and toenails in healthy American young adults. J Eur Acad Dermatol Venereol. 2010
- Grafinger KE, et al. Analysing and quantifying chronic stress-associated endogenous steroids in hair samples. Drug Test Anal. 2024 (scalp hair grows about 1 cm a month)
- FDA: Biotin Interference with Troponin Lab Tests
Individual results vary.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
