Home/ Supplements/ Vitamin C/ C Crystals

C Crystals

product on market Other (e.g. tea bag) Thompson Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • Limited research evidence available for ingredients
B Label Compliance Grade
Label

Product Label

Label for C Crystals
Open Full PDF View on NIH DSLD →
Details

Label Data

0.25 tsp
Serving Size
90
Servings
Vitamin
Product Type
0%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
1250 mg (2083% DV)
Claims

Label Claims — Verification

Unverified All Other
Info

Product Information

Directions for Use

Directions: Use only as directed. Mix 1/4 teaspoon into water or fruit juice as a beverage to be taken at mealtime.

Try it with water or your favorite juice.

Warnings & Precautions

WARNING: Do not take if safety seal is broken or missing.

Keep out of reach of children.

Additional Information

SINCE 1932

100% PURE

FRESH HEALTHY

ONCE DAILY

Keep your licensed health care practitioner informed when using this product.

C-Crystals may also be used in home canning to prevent discoloration. Consult your recipe for proper measure.

Store in a cool, dry place.

Discussion: 100% Pure crystalline Vitamin C provides nutritive support for normal, healthy tissues, bones, teeth, and blood vessels.

Packaged by weight, not volume. Some settling of contents may occur.

1735713 1107

Metadata

Product Details

UPC / SKU0 31315 19010 0
DSLD Entry Date2014-08-26
Product TypeVitamin
FormOther (e.g. tea bag)
BrandThompson
DSLD ID36637
Data Updated2026-04-11
Research

Research Evidence

371
Research Sources
54
Avg Quality
148
Meta Analysis
82
Systematic Review
71
Rct
62
Clinical Trial
2
Regulatory Source
1
Cochrane Review
1
Narrative Review
1
Other
1
Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024 PubMed DOI
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021 PubMed DOI
View all evidence for Vitamin C →
Compare

Similar Products

PNV OB+DHA Caplet
PharmaPure Rx · Other (e.g. tea bag)
100
CitraNatal Assure Rx Prenatal Tablet
Mission Pharmacal CitraNatal · Other (e.g. tea bag)
100
Super B Complex With Vitamin C
CVS Health · Other (e.g. tea bag)
100
Age Defying Hair, Skin & Nails Renewal Formula
RejuviCare · Other (e.g. tea bag)
100
Advanced Ear Health Formula
Mason Natural · Other (e.g. tea bag)
100
View all Vitamin C products →
Vitamin C research Best Vitamin C All Vitamin C products More from Thompson View on NIH DSLD →

This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.