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NoPhedra

Absolute Nutrition
4.2
★ ★ ★ ★ ★
(28 ratings)
Green Tea 360 mg
Tyrosine 150 mg
Guarana
Product Image
Score50
An opaque, aggressive stimulant blend with unclear caffeine and synephrine exposure and poor goal fit.
How scoring works
Quantity:80 Capsule(s) • (40 servings)
Goals:
Anti-Inflammatory Support
Cognitive Support
Energy
Skin Health

Score 50

An opaque, aggressive stimulant blend with unclear caffeine and synephrine exposure and poor goal fit.
How scoring works
$20.64($0.51 per serving)
iHerb
$ 20.64
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Analysis

The capsule combines green tea and guarana caffeine sources with 200 mg Advantra-Z synephrine. Tyrosine and forskolin add further stimulation-oriented ingredients.

The green tea line lists the same 360 mg amount for caffeine and EGCG, while guarana similarly lists 200 mg as caffeine. These entries are unlikely to represent clearly separated active amounts and make total stimulant exposure impossible to determine.

The formula may produce short-term stimulation, but it is not a balanced anti-aging, skin, cognitive, or anti-inflammatory product. Unclear stimulant dosing is a major purchasing concern.

Who is it for
  • Experienced stimulant users who can verify the full label
  • Adults specifically seeking a strong thermogenic formula
Best for
  • Short-term stimulation

Pros

  • Includes tyrosine
  • Uses named green tea and guarana sources
  • Contains a standardized forskolin ingredient

Cons

  • Total caffeine is unclear
  • Synephrine amount appears aggressive
  • Poor fit for most listed goals

Warnings

  • Combining synephrine with caffeine can raise heart rate and blood pressure, especially in stimulant-sensitive users.
  • Avoid combining with other pre-workouts, energy drinks, or decongestants until total stimulant amounts are verified.
  • L-tryptophan may interact with serotonin-raising medicines.

Nutrient quality

42 Lower impact

Green tea, guarana, and bitter orange name target compounds, but their percentages or actual active yields are unclear. Tyrosine and tryptophan are low, while the stimulant exposure may be aggressive.

Ingredient transparency

54 Moderate impact

Ingredient weights are listed, but the actual caffeine and synephrine yields are not reliably established. Excipients and daily directions are absent from the supplied data, which leaves some label details uncertain.

Customer satisfaction

53 Moderate impact

The aggregate satisfaction average is mixed relative to the other products, and no detailed feedback is supplied. The small volume limits confidence in the aggregate satisfaction signal.

Value for money

50 Lower impact

The formula supplies several stimulants, but incomplete active yields and safety trade-offs weaken quality. The serving is inexpensive, though uncertain stimulant yields make effective value hard to judge.

Report analysis

Goals

Anti-Inflammatory Support
Anti-Inflammatory Support
Impact
Moderate effect
B+ Goal FitB Strength of SupportD CoverageF Formula Quality
Green Tea · 360 mg

A disclosed EGCG amount provides direct antioxidant and inflammatory-signaling support. A heavy caffeine and synephrine load may cause jitters, faster heart rate, or sleep disruption in sensitive users.

The green tea active appears meaningfully dosed, but several other ingredients are less relevant to inflammation. The stimulant-driven weight-management design is less coherent for sustained anti-inflammatory support.

Study evidence
Green Tea Mixed 16 studies
Cognitive Support
Cognitive Support
Impact
Moderate effect
B- Goal FitD Strength of SupportC CoverageF Formula Quality
Green Tea · 360 mg

Green tea, guarana, tyrosine, and forskolin target alertness and catecholamine-related performance, but the stimulant system is extreme and incompletely quantified. Tyrosine is far below a useful cognitive amount, while the proprietary matrix obscures additional ingredients.

The disclosed green tea caffeine plus guarana and high-dose synephrine may cause jitteriness, faster heart rate, elevated blood pressure, or sleep disruption. People with stimulant sensitivity, uncontrolled blood pressure, or rhythm problems should avoid this formula.

Study evidence
Green Tea Supportive 32 studies
Guarana Supportive 11 studies
Energy
Mental Alertness
Energy
Impact
Moderate effect
B Goal FitF Strength of SupportC CoverageF Formula Quality

Multiple caffeinated botanicals and synephrine target acute stimulation and focus. Caffeine has strong evidence, but the unquantified yields and several secondary ingredients prevent a reliable efficacy assessment.

Green tea, guarana, and bitter orange weights are stated without actual caffeine or synephrine yields. Key stimulant amounts are hidden behind extract weights, and the proprietary bioflavonoid blend further limits disclosure. Caffeinated green tea, guarana, and synephrine may combine to increase jitteriness, heart-rate effects, blood-pressure effects, and sleep disruption.

Study evidence
Guarana No effect 8 studies
Skin Health
Skin Health
Impact
Moderate effect
D+ Goal FitC+ Strength of SupportD- CoverageF Formula Quality
Green Tea · 360 mg

A disclosed EGCG amount provides focused antioxidant and potential photo-protective support. The extract therefore has a plausible connection to environmental skin resilience.

The formula combines a very large stimulant load with synephrine and is designed for weight management rather than skin health. Caffeine and bitter orange may cause jitters, rapid heartbeat, higher blood pressure, or sleep disruption, especially in stimulant-sensitive users.

Study evidence
Green Tea Supportive 37 studies

Ingredients

IngredientAmount per serving
Green Tea leaves extract (Caffeine, Epigallocatechin Gallate)
 360 mg
Advantra-Z (Synephrine)
 200 mg
Guarana (Caffeine)
 200 mg
L-Tyrosine (L-Tyrosine Hydrochloride)
 150 mg
Proprietary Bioflavanoid Matrix
150 mg
ForsLean (Coleus forskohlii)
 50 mg
L-Tryptophan
25 mg
Gluten Free Adults 18–50 Sugar Free
Report overview
Green Tea (Caffeine, Epigallocatechin Gallate) · 360 mg OverallScore63
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB Value

The extract names an active marker but does not disclose a standardization percentage, while no catechin absorption technology or stabilizing cofactor is listed. The disclosed EGCG amount sits within the preferred efficacy range, and the label states the large caffeine contribution, which may cause jitters, faster heart rate, or sleep disruption in sensitive users. The effective EGCG dose is economical, but the very large disclosed stimulant load is a meaningful tolerability concern; the normalized cost for an effective EGCG amount is favorable.

View ingredientView products
Tyrosine (L-Tyrosine Hydrochloride) · 150 mg OverallScore50
B- Active Ingredient Quality & BioavailabilityD+ Dose, Safety & Label TransparencyF Value

The label identifies L-Tyrosine, but its 150 mg amount is too low for dependable cognitive replenishment. No tyrosine-specific purity or sourcing information is disclosed, and cost efficiency is poor. Bitter orange and guarana make the stimulant-heavy formula a concern for users sensitive to jitteriness or increased heart rate.

View ingredientView products
Guarana (Caffeine) · 200 mg OverallScore27
F Active Ingredient Quality & BioavailabilityD+ Dose, Safety & Label TransparencyF Value

The 200 mg guarana amount meets the collection median, but the label does not identify a seed extract, ratio, or quantified standardization. Caffeine is named without a percentage or milligram yield, leaving the guarana-specific stimulant dose unclear. Cost efficiency per guarana weight is poor, and the combination with caffeinated green tea and synephrine-containing Advantra-Z may increase jitteriness, heart-rate effects, or sleep disruption.

View ingredientView products
Loading alternative details
63 Performance

Healthy Fat Burner

Terra Origin
Acetyl-L-carnitine, a stated caffeine amount, tyrosine, green tea, and ginger provide the clearest support in this broad blend. Compared with NoPhedra’s ambiguous caffeine and synephrine yields, the active purpose is easier to understand from the supplied label, although the stated limitations still matter.
61 Performance

Nugenix Thermo

Nugenix
Caffeine, cayenne, chromium, coffee, tea, and red-orange extract create a clearly disclosed thermogenic profile. Compared with NoPhedra’s ambiguous caffeine and synephrine yields, the active purpose is easier to understand from the supplied label, although the stated limitations still matter.
62 Performance

UltraClear Renew Vanilla Flavor

Metagenics
Protein, amino acids, citrate minerals, active B-vitamin forms, and decaffeinated green tea provide a nutritional rather than stimulant-heavy approach. Compared with NoPhedra’s ambiguous caffeine and synephrine yields, the active purpose is easier to understand from the supplied label, although the stated limitations still matter.
68 Budget

Energy Boost Delayed-Release

Swanson
Named caffeine sources, guarana, Korean ginseng, eleuthero, and green tea provide a broad delayed-release energy blend. Compared with NoPhedra, it costs less while retaining ingredients aimed at energy or metabolism, but its own stimulant or thyroid-related cautions still require care.
67 Budget

Trans4orm

Evlution Nutrition
Green tea, stated caffeine, tyrosine, and choline give the formula a clear energy and weight-management purpose. Compared with NoPhedra, it costs less while retaining ingredients aimed at energy or metabolism, but its own stimulant or thyroid-related cautions still require care.
69 Budget

Metabolic Advantage

Nature's Way
Tyrosine, green tea, iodine, and coffee extract provide a low-cost metabolism-oriented formula with individually listed amounts. Compared with NoPhedra, it costs less while retaining ingredients aimed at energy or metabolism, but its own stimulant or thyroid-related cautions still require care.
68 Value

Energy Boost Delayed-Release

Swanson
Named caffeine sources, guarana, Korean ginseng, eleuthero, and green tea provide a broad delayed-release energy blend. Compared with NoPhedra, the lower serving cost and more clearly named active sources improve practical value, but stimulant stacking or glandular ingredients remain important trade-offs.
67 Value

Trans4orm

Evlution Nutrition
Green tea, stated caffeine, tyrosine, and choline give the formula a clear energy and weight-management purpose. Compared with NoPhedra, the lower serving cost and more clearly named active sources improve practical value, but stimulant stacking or glandular ingredients remain important trade-offs.
69 Value

Metabolic Advantage

Nature's Way
Tyrosine, green tea, iodine, and coffee extract provide a low-cost metabolism-oriented formula with individually listed amounts. Compared with NoPhedra, the lower serving cost and more clearly named active sources improve practical value, but stimulant stacking or glandular ingredients remain important trade-offs.
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. The effects of green tea on acne vulgaris: A systematic review and meta-analysis of randomized clinical trials.
    Kim S; Park TH; Kim WI; Park S; Kim JH; Cho MK · Phytotherapy research : PTR · 2021
    Meta-analysis247 participants5 studies pooledAnti-Inflammatory Support forGreen Tea
  2. Green Tea Catechin Association with Ultraviolet Radiation-Induced Erythema: A Systematic Review and Meta-Analysis.
    Kapoor MP; Sugita M; Fukuzawa Y; Timm D; Ozeki M; Okubo T · Molecules (Basel, Switzerland) · 2021
    Meta-analysis100 participants6 studies pooledAnti-Inflammatory Support Skin Health forGreen Tea
  3. Efficacy of (-)-epigallocatechin gallate delivered by a new-type scaler tip during scaling and root planing on chronic periodontitis: a split-mouth, randomized clinical trial.
    Wang Y; Zeng J; Yuan Q; Luan Q · BMC oral health · 2021
    Randomized trial20 participantsAnti-Inflammatory Support forGreen Tea
  4. Camellia Sinensis Mouthwashes in Oral Care: a Systematic Review.
    Tafazoli A; Tafazoli Moghadam E · Journal of dentistry (Shiraz, Iran) · 2020
    Systematic review69 studies pooledAnti-Inflammatory Support forGreen Tea
  5. Skin photoprotection by green tea: antioxidant and immunomodulatory effects.
    Katiyar SK · Current drug targets. Immune, endocrine and metabolic disorders · 2004
    Narrative reviewAnti-Inflammatory Support forGreen Tea
  6. Safety and efficacy of cognitive training plus epigallocatechin-3-gallate in young adults with Down's syndrome (TESDAD): a double-blind, randomised, placebo-controlled, phase 2 trial.
    de la Torre R; de Sola S; Hernandez G; Farré M; Pujol J; Rodriguez J; Espadaler JM; Langohr K; Cuenca-Royo A; Principe A; Xicota L; Janel N; Catuara-Solarz S; Sanchez-Benavides G; Bléhaut H; Dueñas-Espín I; Del Hoyo L; Benejam B; Blanco-Hinojo L; Videla S; Fitó M; Delabar JM; Dierssen M; TESDAD study group · The Lancet. Neurology · 2017
    Randomized trial87 participantsCognitive Support forGreen Tea
  7. Association between tea consumption and risk of cognitive disorders: A dose-response meta-analysis of observational studies.
    Liu X; Du X; Han G; Gao W · Oncotarget · 2018
    Meta-analysis48,435 participants17 studies pooledCognitive Support forGreen Tea
  8. Investigating the Impact of Tea Consumption on Cognitive Function and Exploring Tea-Genetic Interactions in Older Adults Aged 65-105 Years: Findings from the 2002-2018 CLHLS Data.
    Yu L; Yang M; Ye KX; Li C; Zou M; Wang J; Yuan X; Zheng D; Sun C; Zhang Y; Feng Q; Maier AB; Sun L; Feng L; Wang Y; Chen H; Zeng Y · The journal of prevention of Alzheimer's disease · 2024
    Cohort study76,270 participantsCognitive Support forGreen Tea
  9. Consumption of green tea, but not black tea or coffee, is associated with reduced risk of cognitive decline.
    Noguchi-Shinohara M; Yuki S; Dohmoto C; Ikeda Y; Samuraki M; Iwasa K; Yokogawa M; Asai K; Komai K; Nakamura H; Yamada M · PloS one · 2014
    Cohort study490 participantsCognitive Support forGreen Tea
  10. Green Tea Consumption and the Risk of Incident Dementia in Elderly Japanese: The Ohsaki Cohort 2006 Study.
    Tomata Y; Sugiyama K; Kaiho Y; Honkura K; Watanabe T; Zhang S; Sugawara Y; Tsuji I · The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry · 2018
    Cohort study13,645 participantsCognitive Support forGreen Tea
  11. Cognitive effects of guarana supplementation with maximal intensity cycling.
    Gurney T; Bradley N; Izquierdo D; Ronca F · The British journal of nutrition · 2023
    Randomized trial25 participantsCognitive Support forGuarana
  12. Cognitive Performance Enhancement Induced by Caffeine, Carbohydrate and Guarana Mouth Rinsing during Submaximal Exercise.
    Pomportes L; Brisswalter J; Casini L; Hays A; Davranche K · Nutrients · 2018
    Randomized trial24 participantsCognitive Support forGuarana
  13. Improved cognitive performance in human volunteers following administration of guarana (Paullinia cupana) extract: comparison and interaction with Panax ginseng.
    Kennedy DO; Haskell CF; Wesnes KA; Scholey AB · Pharmacology, biochemistry, and behavior · 2005
    Non-randomized trial28 participantsCognitive Support forGuarana
  14. The effect of plant active substances on cognitive function in healthy older adults: a systematic review and network meta-analysis of randomized controlled trials.
    Feng X; Fan S; Wei F · Frontiers in pharmacology · 2026
    Meta-analysis1,861 participants25 studies pooledCognitive Support forGuarana
  15. Effect of Guarana (Paullinia cupana) on Cognitive Performance: A Systematic Review and Meta-Analysis.
    Hack B; Penna EM; Talik T; Chandrashekhar R; Millard-Stafford M · Nutrients · 2023
    Meta-analysis328 participants8 studies pooledCognitive Support forGuarana
  16. Dietary supplements and fatigue in patients with breast cancer: a systematic review.
    Pereira PTVT; Reis AD; Diniz RR; Lima FA; Leite RD; da Silva MCP; Guerra RNM; de Moraes Vieira ÉB; Garcia JBS · Breast cancer research and treatment · 2019
    Systematic review932 participants8 studies pooledEnergy forGuarana
  17. Purified dry extract of Paullinia cupana (guaraná) (PC-18) for chemotherapy-related fatigue in patients with solid tumors: an early discontinuation study.
    del Giglio AB; Cubero Dde I; Lerner TG; Guariento RT; de Azevedo RG; Paiva H; Goldman C; Carelli B; Cruz FM; Schindler F; Pianowski L; de Matos LL; del Giglio A · Journal of dietary supplements · 2014
    Randomized trial40 participantsEnergy forGuarana
  18. Placebo-Controlled, Double-Blind, Randomized Study of a Dry Guarana Extract in Patients with Head and Neck Tumors Undergoing Chemoradiotherapy: Effects on Fatigue and Quality of Life.
    Martins SPDS; Ferreira CL; Del Giglio A · Journal of dietary supplements · 2019
    Randomized trial60 participantsEnergy forGuarana
  19. Effects of Acute Guarana (Paullinia cupana) Ingestion on Mental Performance and Vagal Modulation Compared to a Low Dose of Caffeine.
    Talik TN; Penna EM; Hack BP; Harp A; Millard-Stafford M · Nutrients · 2024
    Randomized trial20 participantsEnergy forGuarana
  20. Effectiveness of guaraná (Paullinia cupana) for postradiation fatigue and depression: results of a pilot double-blind randomized study.
    da Costa Miranda V; Trufelli DC; Santos J; Campos MP; Nobuo M; da Costa Miranda M; Schlinder F; Riechelmann R; del Giglio A · Journal of alternative and complementary medicine (New York, N.Y.) · 2009
    Randomized trial36 participantsEnergy forGuarana
  21. Topical Polyphenon E in the treatment of external genital and perianal warts: a randomized controlled trial.
    Stockfleth E; Beti H; Orasan R; Grigorian F; Mescheder A; Tawfik H; Thielert C · The British journal of dermatology · 2008
    Randomized trial503 participantsSkin Health forGreen Tea
  22. Efficacy, safety and tolerability of green tea catechins in the treatment of external anogenital warts: a systematic review and meta-analysis.
    Tzellos TG; Sardeli C; Lallas A; Papazisis G; Chourdakis M; Kouvelas D · Journal of the European Academy of Dermatology and Venereology : JEADV · 2011
    Meta-analysis1,247 participants3 studies pooledSkin Health forGreen Tea
  23. Green tea polyphenols provide photoprotection, increase microcirculation, and modulate skin properties of women.
    Heinrich U; Moore CE; De Spirt S; Tronnier H; Stahl W · The Journal of nutrition · 2011
    Randomized trial60 participantsSkin Health forGreen Tea
  24. Efficacy of Epigallocatechin-3-Gallate in Preventing Dermatitis in Patients With Breast Cancer Receiving Postoperative Radiotherapy: A Double-Blind, Placebo-Controlled, Phase 2 Randomized Clinical Trial.
    Zhao H; Zhu W; Zhao X; Li X; Zhou Z; Zheng M; Meng X; Kong L; Zhang S; He D; Xing L; Yu J · JAMA dermatology · 2022
    Randomized trial180 participantsSkin Health forGreen Tea