PlainVitamins

Sereniten Plus

by Douglas Laboratories · capsule · 30 vegetarian capsules

  • On the market (NIH)
  • UPC 3 10539 03954 0
  • DSLD label 286735
  • Serving 1 vegetarian capsule
  • 30 servings

Sereniten Plus by Douglas Laboratories lists 3 ingredients, 3 with an amount per serving of 1 vegetarian capsule, such as 2.5 mcg (100 IU) of vitamin D3, 175 mg of lactium and 50 mg of L-theanine. Its current label entered the NIH Dietary Supplement Label Database on June 22, 2023.

What is in Sereniten Plus?

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

Sereniten Plus: Supplement Facts rows against the market (DSLD label 286735, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin D3as CholecalciferolVitamin D3 (Alt. Name: Cholecalciferol) Note: 100 IU2.5 mcg (100 IU)13%Vitamin D in Sereniten Plus against 14,175 products2.5 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg2.5 mcg

92% of 14,175 products listing vitamin D give more (median 15 mcg).

Lactiumas Casein Hydrolysate, Decapeptide, Bioactive175 mg
L-Theanine50 mgTheanine in Sereniten Plus against 1,602 products50 mg per serving; the middle half of products list 90 mg to 200 mg, the median 100 mg.50 mg

79% of 1,602 products listing theanine give more (median 100 mg).

Source: NIH ODS Dietary Supplement Label Database, label 286735 (entered June 22, 2023), version 9.4.0. See the label on DSLD or its label image (PDF). 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:

  • 92% of the 14,175 products that print an amount of vitamin D list more than its 2.5 mcg (100 IU) of vitamin D (median 15 mcg (600 IU)).
  • 79% of the 1,602 products that print an amount of theanine list more than its 50 mg of L-theanine (filed by NIH under theanine) (median 100 mg).

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?

1 product lists the very same ingredients; the nearest amounts come first.

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 capsule daily on an empty stomach or as directed by your health professional.
Warnings
Warning: If you are pregnant, nursing, have any health condition or taking any medication, consult your health professional before using this product.
Keep out of the reach of children.
Use only if safety seal is intact.
Contains: Milk
Allergens and what it does not contain
Gluten-free, Non-GMO
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 286735.

What else is on the label?

Other ingredients: Microcrystalline Cellulose, Hydroxypropyl Methylcellulose, Silica.

How many labels does Sereniten Plus have?

5 labels are on file under this name since March 24, 2016: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 286735 (current) Entered June 22, 2023 · on the market · 30 vegetarian capsules · UPC 3 10539 03954 0
  2. Label 245463 Entered February 25, 2021 · on the market · 60 vegetarian capsules · UPC 3 10539 97750 7
  3. Label 232199 Entered August 23, 2020 · off the market July 21, 2022 · 30 vegetarian capsules · UPC 3 10539 03954 0
  4. Label 176654 Entered May 24, 2018 · off the market May 18, 2020 · 30 vegetarian capsules · UPC 3 10539 03954 0
  5. Label 57275 Entered March 24, 2016 · off the market January 22, 2018 · 30 vegetarian capsules · UPC 3 10539 03954 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 (manufacturer), Pittsburgh, PA. All Douglas Laboratories products.

Where next?