PlainVitamins

Prim Royal

by Douglas Laboratories · capsule · 180 vegetarian caplique capsules

  • On the market (NIH)
  • UPC 3 10539 02779 0
  • DSLD label 56560
  • Serving 1 caplique capsule
  • 180 servings

Prim Royal by Douglas Laboratories lists 3 ingredients, 3 with an amount per serving of 1 caplique capsule, such as 500 mg of organic cold-pressed oil of evening primrose, beside 4 Nutrition Facts rows (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on February 23, 2016.

What is in Prim Royal?

Each row as the label prints it, per serving of 1 caplique capsule. 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).

Prim Royal: Supplement Facts rows against the market (DSLD label 56560, January 2026 release)
IngredientAmount% DVAmong products listing it
Calories5 Calories
Calories from Fat5 Calories
Total Fat0.5 g1%Fat (unspecified) in Prim Royal against 11,965 products0.5 g per serving; the middle half of products list 1 g to 2.5 g, the median 1.5 g.0.5 g

86% of 11,965 products listing fat (unspecified) give more (median 1.5 g). Per day at the most servings: 3 g.

Saturated Fat0.04 g1%Saturated fat in Prim Royal against 5,234 products0.04 g per serving; the middle half of products list 0.5 g to 1.5 g, the median 1 g.0.04 g

over 99% of 5,234 products listing saturated fat give more (median 1 g). Per day at the most servings: 0.24 g.

Polyunsaturated Fat0.4 gPolyunsaturated Fat in Prim Royal against 1,759 products0.4 g per serving; the middle half of products list 0.5 g to 2 g, the median 1 g.0.4 g

94% of 1,759 products listing polyunsaturated fat give more (median 1 g). Per day at the most servings: 2.4 g.

Monounsaturated Fat0.06 gMonounsaturated Fat in Prim Royal against 989 products0.06 g per serving; the middle half of products list 0.5 g to 1 g, the median 1 g.0.06 g

97% of 989 products listing monounsaturated fat give more (median 1 g). Per day at the most servings: 0.36 g.

organic cold-pressed Oil of Evening Primroseorganic cold-pressed Oil of Evening Primrose Note: supplying the essential Fatty Acids500 mgEvening Primrose oil in Prim Royal against 300 products500 mg per serving; the middle half of products list 500 mg to 1,300 mg, the median 500 mg.500 mg

50% of 300 products listing evening primrose oil give more (median 500 mg). Per day at the most servings: 3,000 mg.

Gamma-Linolenic Acid40 mgGamma Linolenic Acid in Prim Royal against 740 products40 mg per serving; the middle half of products list 42 mg to 160 mg, the median 90 mg.40 mg

75% of 740 products listing gamma linolenic acid give more (median 90 mg). Per day at the most servings: 240 mg.

Linoleic Acid340 mgLinoleic Acid in Prim Royal against 801 products340 mg per serving; the middle half of products list 110 mg to 696 mg, the median 350 mg.340 mg

52% of 801 products listing linoleic acid give more (median 350 mg). Per day at the most servings: 2,040 mg.

Source: NIH ODS Dietary Supplement Label Database, label 56560 (entered February 23, 2016), 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?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

The NIH database records 3 to 6 servings 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 Prim Royal's, rare ingredients counting for more.

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
Suggested Usage: As a dietary supplement, adults take 1 Caplique 3 to 6 times daily or as directed by your healthcare professional.
Warnings
KEEP OUT OF REACH OF CHILDREN.
Tamper resistant package, do not use if outer seal is missing.
Allergens and what it does not contain
This product contains NO yeast, wheat, gluten, soy protein, milk/dairy, corn, sodium, sugar, starch, artificial coloring, preservatives or flavoring
Storage
For optimal storage conditions, store in a cool, dry place. (59(0)-77(0)F/15(0)-25(0)C) (35-65% relative humidity)

Source: label statements in DSLD label 56560.

What else is on the label?

Other ingredients: Cellulose, Silica.

How many labels does Prim Royal have?

8 labels are on file under this name since January 25, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 56560 (current) Entered February 23, 2016 · on the market · 180 vegetarian caplique capsules · UPC 3 10539 02779 0
  2. Label 30966 Entered February 26, 2014 · off the market December 15, 2015 · 180 Vegetarian Caplique(TM) Capsules · UPC 3 10539 02779 0
  3. Label 30965 Entered February 26, 2014 · on the market · 60 Vegetarian Caplique(R) capsules · UPC 3 10539 02778 3
  4. Label 10550 Entered July 25, 2012 · off the market July 31, 2013 · 60 Vegetarian Caplique(TM) Capsules · UPC 3 10539 02778 3
  5. Label 8044 Entered April 26, 2012 · on the market · 60 softgels · UPC 3 10539 01006 8
  6. Label 8047 Entered March 23, 2012 · on the market · 180 softgels · UPC 3 10539 00430 2
  7. Label 5219 Entered January 25, 2012 · off the market January 20, 2012 · 60 Vegetarian Capliques(TM) · UPC 3 10539 02778 3
  8. Label 5218 Entered January 25, 2012 · off the market July 31, 2013 · 180 Vegetarian Capliques(TM) · UPC 3 10539 02779 0

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Douglas Laboratories (distributor), Pittsburgh, PA. All Douglas Laboratories products.

Where next?