The Vitamin Shoppe Keratin for Hair
Brand: The Vitamin Shoppe · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that The Vitamin Shoppe Keratin for Hair is a product where data on its primary ingredient is limited. Our assessment is based on the available information for calcium, which is listed as an ingredient. For this specific product formulation, data on its effectiveness for hair growth is not available.
How it works
Calcium, the ingredient we have data on, plays a role in bone mineralization and neuromuscular relaxation [NIH ODS]. Think of it as a mineral supporter for your body’s structural and signaling systems. For any specific mechanism related to hair keratin, data is not available.
Safety profile
FDA received a total of 592,059 adverse event reports across all supplements. For calcium specifically, high levels can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
We recommend caution. Since data on the effectiveness of The Vitamin Shoppe Keratin for Hair for its intended purpose is not available, you should consult your healthcare provider before starting this supplement. They can help you understand if this product fits your specific health needs and monitor for potential interactions with any medications you take [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | The Vitamin Shoppe |
|---|---|
| Serving Size | |
| Contents | 120.0 Capsule(s) |
| Market Status | On Market |
How to Read This Label
Supplement labels contain several key sections regulated by the FDA:
- Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
- Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
- % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
- Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
- Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.
Source: FDA Dietary Supplement Labeling Guide