Keratin Booster
by Reserveage Nutrition · capsule · 60 capsules
- Off the market since September 2022 (NIH)
- DSLD label 70571
- Serving 2 capsules
- 30 servings
Keratin Booster by Reserveage Nutrition lists 7 ingredients, 4 with an amount per serving of 2 capsules, such as 3,000 mcg of biotin, 500 mg of cynatine HNS and 20 mg of quercetin; 3 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on February 24, 2017.
What is in Keratin Booster?
Each row as the label prints it, per serving of 2 capsules. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Biotin | 3,000 mcg | 1,000% | Higher than 91% of 9,447 products listing biotin (median 200 mcg). |
| Cynatine HNSas Sheep's WoolCynatine HNS (Form: from Sheep's Wool) (Alt. Name: solubilized Keratin) | 500 mg | 0% of 102 products listing keratin give more (median 500 mg). | |
| Pro-Longevity Factors Blend | 40 mg | ||
| Wildcrafted Japanese Knotweed extractWildcrafted Japanese Knotweed extract PlantPart: root and rhizome Genus: Polygonum Species: cuspidatum Note: standardized to contain | in the blend, no amount given | ||
| Trans-Resveratrol | 20 mg | 72% of 1,123 products listing resveratrol give more (median 50 mg). | |
| organic French whole Red Wine Grape | in the blend, no amount given | ||
| certified organic Muscadine whole Red Grape | in the blend, no amount given | ||
| Quercetinas Quercetin DihydrateQuercetin (Form: as Quercetin Dihydrate) | 20 mg | 84% of 1,548 products listing quercetin give more (median 100 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 70571 (entered February 24, 2017), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.
Is that a lot?
The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:
- Its 3,000 mcg of biotin is higher than 91% of the 9,447 biotin products that print an amount; 713 list more.
The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.
The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.
Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.
Which products have the closest formulas?
The products whose ingredient lists overlap most with Keratin Booster's, rare ingredients counting for more.
- Resveratrol 250 mgReserveage Nutrition · off the market 4 shared, 64% alike
- Resveratrol 500 mgReserveage Nutrition · off the market 4 shared, 64% alike
- The World's Finest Resveratrol 100 mgReserveage Organics · off the market 4 shared, 64% alike
- Resveratrol 250 mgResVitale 4 shared, 64% alike
- Resveratrol 500 mgResVitale 4 shared, 64% alike
- Resveratrol 1000 mgReserveage Beauty 4 shared, 64% alike
Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.
What does the label say about taking it?
Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.
- Directions
- Directions: As a dietary supplement, take 2 capsules daily. Product can be taken on an empty stomach, with food or as recommended by your healthcare practitioner.
- For best results, take for a minimum or 90 days.
- Warnings
- Warning: Keep out of reach of children and pets. Do not use if outer seal is broken or missing.
- Warning: Keep out of reach of children and pets.
- As with any supplement, consult your healthcare practitioner before using this product, especially if you are pregnant, nursing, have existing medical conditions or are taking prescription medications.
- Allergens and what it does not contain
- Gluten free.
- Storage
- Best stored tightly in a cool, dry place.
Source: label statements in DSLD label 70571.
What else is on the label?
Other ingredients: Vegetarian Capsule, Rice Bran, Silica.
How many labels does Keratin Booster have?
One label is on file, entered on February 24, 2017.
- Label 70571 (current) Entered February 24, 2017 · off the market September 9, 2022 · 60 capsules
DSLD also links this label to: Keratin Hair Booster (image difference, same product), Keratin Hair Booster (image difference, same product).
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Reserveage Nutrition (distributor), Boca Raton, FL. All Reserveage Nutrition products.