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StressMaster

product on market Capsule Advanced Nutrition by Zahler Safety: 98/100
98/100

This product looks safe

  • Folate: 1.33333mg is 1.3× the Tolerable Upper Intake Level (1.0mg)
  • 44% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This formula combines antioxidants like vitamins A, C, and E with folate and valerian root. Research provides moderate evidence that valerian root may support relaxation and sleep quality. However, overall evidence coverage for this specific ingredient profile is limited.

AI-generated summary based on research evidence. Not medical advice.

Alerts

Safety Alerts

Folate: 1.33333mg is 1.3× the Tolerable Upper Intake Level (1.0mg)

Label

Product Label

Label for StressMaster
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
44%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin A
1500 mcg (167% DV)
Vitamin C
750 mcg (833% DV)
134 mg (893% DV)
8.9× RDA — above typical dose (UL: 1000 mg) 179 studies (A:3, B:90)
1333.33 mcg (333% DV)
Exceeds UL by 1.3× (UL: 1.0 mg) 226 studies (A:10, B:105)
Market median: 300.0mg (214 products) 25 studies (A:0, B:6)
Market median: 300.0mg (122 products) 22 studies (A:0, B:7)
Eleuthero root powder
300 mg
Gamma Amino Butyric Acid
250 mg
Market median: 250.0mg (60 products) 7 studies (A:0, B:1)
Chinese Skullcap, Powder
200 mg
Hops flower powder
150 mg
Sarsaparilla root powder
100 mg
Market median: 420.0mg (127 products) 4 studies (A:0, B:1)
Market median: 300.0mg (159 products)
Wood Betony, Powder
100 mg
100 mg
Market median: 200.0mg (358 products) 9 studies (A:0, B:2)

Other Ingredients

Hypromellose Magnesium Stearate
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: Take 4 capsules daily, preferably 2 capsules twice a day with food, or as directed by a healthcare practitioner.

Warnings & Precautions

Keep out of reach of children.

Do not use if safety seal is damaged or missing.

If pregnant, nursing or on medication, consult with your healthcare practitioner.

Formulation Notes

Relaxation suport formula

Zahler StressMaster is a comprehensive formula including Valerian root, Rhodiola root, Passionflower and more. This formula is designed to support calmness and promote relaxation.

Kosher Pareve Under the strict supervision of Rabbi SH. Stern & the orthodox union

Non-GMO Dairy free Soy free

Vegetarian

Promotes relaxation and calm support Mind & spirit

Additional Information

You may need additional supplements to support a healthy diet; consult your nutritionist for a formula that is right for you or contact us at 877-ASK-ZAHLER (877-275-9245) or ask@zahlers.com.

D (Dairy Kosher) OU (Kosher) This product was manufactured in a GMP certified Facility

Store tightly closed in a cool, dry place.

Made in the USA

Metadata

Product Details

UPC / SKU8 48998 08079 2
DSLD Entry Date2022-02-23
Product TypeOther Combinations
FormCapsule
BrandAdvanced Nutrition by Zahler
DSLD ID260326
Data Updated2026-04-11
Research

Research Evidence

337
Research Sources
54
Avg Quality
161
Meta Analysis
68
Systematic Review
51
Rct
48
Clinical Trial
2
Other
2
Regulatory Source
1
Narrative Review
1
Cochrane Review
1
Guideline
1
Openfda Safety
A Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age
Meta Analysis The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin A supplementation for the prevention of morbidity and mortality in infants six months of age or less
Meta Analysis The Cochrane database of systematic reviews 2011 PubMed DOI
A Vitamin A supplementation for reducing the risk of mother-to-child transmission of HIV infection
Meta Analysis The Cochrane database of systematic reviews 2011 PubMed DOI
A Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis
Meta Analysis BMJ (Clinical research ed.) 2011 PubMed DOI
A Fortification of staple foods with vitamin A for vitamin A deficiency
Systematic Review The Cochrane database of systematic reviews 2019 PubMed DOI
A Vitamin A supplementation for the prevention of morbidity and mortality in infants one to six months of age
Narrative Review The Cochrane database of systematic reviews 2016 PubMed DOI
A Vitamin A and fish oils for preventing the progression of retinitis pigmentosa
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Exercise training-induced changes in exerkine concentrations may be relevant to the metabolic control of type 2 diabetes mellitus patients: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Journal of sport and health science 2023 PubMed DOI
A Food fortification with multiple micronutrients: impact on health outcomes in general population
Meta Analysis The Cochrane database of systematic reviews 2019 PubMed DOI
A Oral vitamin A supplements to prevent acute upper respiratory tract infections in children up to seven years of age
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
View all evidence for Vitamin A →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.