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StressMaster

Advanced Nutrition by Zahler
4.6
(2892 ratings)
Theanine 100 mg
GABA 250 mg
Valerian 450 mg
Eleuthero 300 mg
Folate 1333.33 mcg
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Score87

A multifaceted herbal and amino acid blend designed for relaxation and stress management.

How scoring works
Quantity:120 Capsule(s)(30 servings)
Goals:
Stress Relief
Mental Focus
Mood Support
Productivity Boost
Brain Health
Sleep Support
General Health
Energy
Cognitive Support

Score 87

A multifaceted herbal and amino acid blend designed for relaxation and stress management.

How scoring works
$36.38($1.21 per serving)
Amazon
$ 36.38
Pure Formulas
$ 45.47
iHerb
$ 42.81
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Analysis

This supplement uses a wide array of botanicals like passionflower and skullcap to support a calm state during high-pressure times. It includes 250mg of GABA and 100mg of L-theanine to support inhibitory neurotransmitter pathways for relaxation.

The high dose of folate provides foundational support for neurological health and mood stability. It fits individuals looking for a heavy botanical formula to manage environmental and physical stress.

Pros

  • High Rhodiola and Valerian dose
  • Includes GABA and Theanine
  • Broad botanical variety
  • High-dose folate support

Cons

  • No Vitamin B12 included
  • Four-capsule serving size
  • Opaque folate source

Warnings

  • Avoid with liver concerns
  • May cause significant drowsiness

Nutrient quality

78 High impact

Meaningful doses of rhodiola extract and valerian root provide strong support for stress resilience and relaxation goals. However, the inclusion of a high folate dose without balancing vitamin B12 poses a potential nutritional imbalance for the user.

Ingredient transparency

93 Highest impact

Active ingredients are listed with clear milligram amounts, though some vitamins lack specific form details. The label clearly identifies the plant parts used for the extensive botanical list, which assists in quality assessment.

Customer satisfaction

94 Highest impact

Very strong ratings and an extensive review count demonstrate high consumer trust in the product's effectiveness. Feedback consistently indicates that users experience improvements in stress management and sleep quality as intended.

Value for money

85 Highest impact

Pricing is reasonable given the large servings count and the inclusion of well-dosed key ingredients like rhodiola. While some components are simple powders rather than extracts, the overall formula breadth provides good value.

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Goals

Impact
Highest effect
A Goal FitB+ Strength of SupportA CoverageA- Formula Quality

Rhodiola, Valerian, and GABA provide a multifaceted approach to modulating the body's stress response and promoting relaxation. These ingredients target both the HPA axis and inhibitory neurotransmitter pathways to assist with both mental and physical tension.

L-Theanine and various botanical extracts such as Passionflower and Chinese Skullcap further enhance the formulation's ability to support a calm state. The broad array of adaptogens and vitamins ensures comprehensive support for individuals facing high environmental or physical pressure.

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Impact
Highest effect
A- Goal FitA- Strength of SupportA- CoverageA- Formula Quality

Blends Rhodiola and L-Theanine with a wide array of calming botanicals like Valerian and Passionflower to support stress management. This comprehensive approach helps preserve focus by mitigating the effects of overstimulation and burnout.

The 400mg dose of Rhodiola provides meaningful support for maintaining mental clarity and endurance. This supplement is best for users seeking a multi-faceted approach to achieving a calm and resilient state for concentration.

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Impact
Highest effect
A Goal FitB Strength of SupportA+ CoverageC+ Formula Quality

This broad formula combines adaptogens like rhodiola with calming herbs such as valerian and GABA to support a stable mood and stress resilience. These ingredients address emotional equilibrium through multiple biological pathways, from neurotransmitter support to HPA-axis regulation.

While the botanical variety is high, the lack of vitamin B12 when paired with high folate may be a concern for some individuals. Consistent use may contribute to better relaxation and improved management of daily environmental stressors.

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Impact
Highest effect
B+ Goal FitA- Strength of SupportB+ CoverageB+ Formula Quality

A complex blend featuring valerian root, rhodiola extract, and l-theanine supports a comprehensive stress response and mental resilience. These botanical ingredients may contribute to improved focus and reduced fatigue during periods of high environmental stress.

The inclusion of gamma amino butyric acid (GABA) and passionflower appears well aligned with promoting a calm mental state. Providing 400mg of rhodiola offers focused support for the adaptogenic pathways that maintain productivity under pressure.

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Impact
Highest effect
A Goal FitB- Strength of SupportA- CoverageB+ Formula Quality

Standardized Rhodiola root extract and L-theanine provide meaningful support for cognitive focus and adaptogenic resilience. The high dose of Rhodiola appears well aligned with clinical targets for managing mental fatigue.

The inclusion of multiple calming herbs like valerian and skullcap provides a multi-faceted approach to supporting brain health during stress. However, the lack of transparency regarding folate forms limits the overall quality assessment.

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Impact
High effect
B+ Goal FitB- Strength of SupportA- CoverageB- Formula Quality

Ingredients like valerian root, GABA, and L-theanine are included alongside adaptogens like rhodiola to support stress resilience and relaxation. This broad botanical formula targets multiple aspects of the nervous system for improved rest.

The use of many herbal powders at 100-200 mg may result in some ingredients being present at suboptimal levels. While comprehensive, the high number of actives may lead to lower potency for certain key sleep mechanisms.

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Ingredients

IngredientAmount per serving
Vitamin A (Beta-Carotene)
1500 mcg
Vitamin C (Ascorbic Acid)
750 mcg
Vitamin E (D-Alpha-Tocopheryl Succinate)
134 mg
Folate
1333.33 mcg
Valerian root powder
450 mg
Rhodiola root extract
400 mg
Eleuthero root powder
300 mg
Gamma Amino Butyric Acid
250 mg
Passionflower, Powder
200 mg
Chinese Skullcap, Powder
200 mg
Hops flower powder
150 mg
Sarsaparilla root powder
100 mg
Licorice root powder
100 mg
Dandelion root powder
100 mg
Wood Betony, Powder
100 mg
L-Theanine
100 mg
Adults 18–50 Kosher Dairy Free Vegetarian
Report overview
Theanine · 100 mg OverallScore82
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyD+ Value
StressMaster is a complex blend that includes 100mg of L-Theanine alongside numerous calming herbs and vitamins. It is a comprehensive formula for total-body resilience against environmental and physical stressors.
GABA · 250 mg OverallScore75
B- Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyD- Value
This multi-nutrient formula includes 250mg of GABA alongside a wide array of vitamins and herbal powders. It is a comprehensive stress master blend, though the high cost per serving reflects its complexity rather than just GABA content.
Valerian · 450 mg OverallScore65
C- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyF Value
StressMaster is a comprehensive stress support supplement using a solid dose of raw valerian root. It is formulated with many other calming herbs, though the price is quite high per serving.
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