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Sinus Adult Sinus Support

Redd Remedies
4.6
★ ★ ★ ★ ★
(33 ratings)
Bromelain 100 mg
Stinging Nettle 100 mg
Flavonoid (mixture) 100 mg
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Score69
Quercetin, NAC, vitamin C, and bromelain make a well-aligned sinus blend. Missing enzyme activity and modest secondary doses limit potency assessment.
How scoring works
Quantity:100 Tablet(s) • (50 servings)
Goals:
Anti-Inflammatory Support

Score 69

Quercetin, NAC, vitamin C, and bromelain make a well-aligned sinus blend. Missing enzyme activity and modest secondary doses limit potency assessment.
How scoring works
$39.99($0.79 per serving)
iHerb
$ 39.99
Vitacost
$ 39.99
Pure Formulas
$ 39.99
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Analysis

Quercetin at 250 mg leads the formula, supported by 200 mg each of vitamin C and NAC. A 100 mg citrus bioflavonoid complex broadens antioxidant coverage without hiding its total amount.

Bromelain at 100 mg may complement the sinus-focused ingredients, but enzyme activity units and source are not disclosed. Nettle, barberry, and ivy add breadth, though their amounts and preparation details are modest.

All active quantities are itemized and the two-tablet serving is manageable. The formula fits inflammatory sinus support much better than testosterone support, where it lacks direct, evidence-backed nutrients.

Who is it for
  • Adults seeking non-stimulant sinus support
  • People wanting quercetin with NAC
  • Users comfortable with a broad botanical tablet
Best for
  • Seasonal sinus support
  • Antioxidant and mucus support
  • A quercetin and NAC routine

Pros

  • Provides 250 mg quercetin
  • Includes 200 mg NAC
  • Adds vitamin C and citrus flavonoids
  • Discloses all active amounts

Cons

  • Bromelain activity units are missing
  • Nettle preparation is unspecified
  • Poor alignment with testosterone support
  • Several botanicals are modestly dosed

Warnings

  • Bromelain and quercetin may add to bleeding risk with anticoagulant or antiplatelet medicines
  • Grapefruit flavonoids can interact with some medicines
  • Barberry can alter blood sugar and medication exposure
  • Ivy and nettle may cause digestive or allergic reactions in sensitive users

Nutrient quality

71 High impact

NAC and quercetin are clear, while bromelain lacks activity units and several botanicals lack standardization. Quercetin is useful, but NAC, bromelain, nettle, and minor herbs provide moderate depth.

Ingredient transparency

78 High impact

Every listed active and citrus fraction has a disclosed amount. Excipients and daily directions are absent from the supplied data, which leaves some label details uncertain.

Customer satisfaction

63 Moderate impact

The aggregate satisfaction average is strong, though no detailed feedback is supplied. The limited volume supports only moderate confidence in the aggregate satisfaction signal.

Value for money

58 Moderate impact

The coherent multi-pathway formula supports fair quality despite incomplete enzyme detail. The serving cost is somewhat high for moderate NAC and bromelain amounts.

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Goals

Anti-Inflammatory Support
Anti-Inflammatory Support
Impact
High effect
B+ Goal FitC Strength of SupportB+ CoverageA- Formula Quality
Vitamin C · 200 mg

Quercetin, NAC, bromelain, vitamin C, citrus flavonoids, nettle, and other botanicals cover antioxidant, mucus, enzyme, and immune-response pathways. The combination is well aligned with inflammatory sinus support, though several ingredients are below amounts commonly used alone.

Quercetin is useful and the formula is fully itemized, while NAC and bromelain provide moderate rather than deep dosing. Missing bromelain activity units and botanical standardization keep quality below the strongest focused formulas.

Study evidence
Bromelain Supportive 12 studies
Stinging Nettle Supportive 5 studies
Vitamin C Supportive 50 studies

Ingredients

IngredientAmount per serving
Vitamin C (Ascorbic Acid)
 200 mg
Quercetin
250 mg
N-Acetyl Cysteine
200 mg
Citrus Bioflavonoid Complex (Didymin, Lemon, Lime, Naringin, Narirutin, Orange, Phenolic compounds, Tangerine, Total Bioflavonoids, Eriocitrin, Grapefruit, Hesperidin)
 100 mg
Bromelain
100 mg
Stinging Nettle
100 mg
Barberry (Berberis vulgaris) root extract
50 mg
Ivy (Hedera helix) leaf extract
30 mg
Gluten Free Adults 18–50 Dairy Free
Report overview
Bromelain · 100 mg OverallScore43
F Active Ingredient Quality & BioavailabilityD- Dose, Safety & Label TransparencyD+ Value

The bromelain amount is meaningful within a broad sinus-support formula, but no enzyme activity is disclosed. A standard tablet is less protective than an enteric-coated format, and the botanical source is not identified. The bromelain-only cost is high, though the substantial quercetin and other actives improve the formula value.

View ingredientView products
Stinging Nettle · 100 mg OverallScore31
F Active Ingredient Quality & BioavailabilityC Dose, Safety & Label TransparencyF Value

Nettle is a minor supporting ingredient in a broader sinus formula led by vitamin C, quercetin, and N-acetyl cysteine. Its 100 mg amount is clear, but the label omits both plant part and preparation, so nettle-specific quality is difficult to assess. A cost above the collection median further limits value for shoppers focused on nettle.

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Loading alternative details
79 Performance

Respir-All

NOW
<p>Respir-All provides much larger amounts of quercetin, nettle, bromelain, and vitamin C than the original. Zinc, vitamin B6, and pantothenic acid add nutrient coverage, while licorice may be an important suitability consideration for some users.</p>
70 Performance

Aller-All

Protocol For Life Balance
<p>Aller-All closely matches the original’s quercetin, nettle, bromelain, and vitamin C focus at substantially larger amounts. Added zinc and B vitamins broaden the formula, although it omits N-acetylcysteine and may offer weaker value.</p>
70 Performance

Breathe-X Allergy & Sinus Support

LifeSeasons
<p>Breathe-X gives a more concentrated version of the same core pattern, with 1,000 mg quercetin, 250 mg bromelain, and 500 mg vitamin C. It also retains citrus bioflavonoids and nettle, but does not include N-acetylcysteine.</p>
70 Budget

Sinuplex

Metagenics
<p>Sinuplex is a lower-cost sinus-focused option that retains vitamin C, quercetin, nettle, bromelain, and N-acetylcysteine. Most amounts are lower than in the original, so the savings come with lighter ingredient coverage.</p>
78 Budget

Quercetin Bromelain

ForestLeaf
<p>Quercetin Bromelain improves value while doubling the supplied quercetin and providing five times as much nettle as the original. It also retains vitamin C and bromelain in a simpler formula, but leaves out N-acetylcysteine and citrus flavonoids.</p>
63 Budget

Lung Health

Dr Tobias
<p>Lung Health costs less per serving and keeps vitamin C, citrus bioflavonoids, quercetin, nettle, and bromelain. Its amounts of the main overlapping ingredients are lower, so it suits someone who values a broader respiratory blend more than close dose matching.</p>
63 Value

Inflamma-X

LifeSeasons
<p>Inflamma-X shifts the emphasis toward standardized turmeric and boswellia while retaining bromelain, quercetin, and nettle. Its overlap is less complete and the serving cost is higher, so the value case mainly applies when broader anti-inflammatory ingredient coverage is the priority.</p>
60 Value

Lung Capaci-T

LifeSeasons
<p>Lung Capaci-T broadens respiratory-oriented coverage with standardized boswellia, green tea, grape seed, mullein, bromelain, N-acetylcysteine, and nettle. It is less economical and uses lower amounts of several overlapping ingredients, so it is a value option only for someone seeking the wider botanical blend.</p>
49 Value

Digestivi-T

LifeSeasons
<p>Digestivi-T is the least direct substitute because its main emphasis is digestive enzymes and probiotics. Bromelain, nettle, chamomile, ginger, and fennel may still suit someone prioritizing digestive support, but the higher serving cost and missing quercetin make it weaker value for sinus-focused use.</p>
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Sources

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

  1. Therapeutic efficacy of bromelain in impacted third molar surgery: a randomized controlled clinical study.
    Ordesi P; Pisoni L; Nannei P; Macchi M; Borloni R; Siervo S · Quintessence international (Berlin, Germany : 1985) · 2016
    Randomized trial80 participantsAnti-Inflammatory Support forBromelain
  2. Efficacy of proteolytic enzyme bromelain on health outcomes after third molar surgery. Systematic review and meta-analysis of randomized clinical trials.
    Mendes ML; do Nascimento-Júnior EM; Reinheimer DM; Martins-Filho PR · Medicina oral, patologia oral y cirugia bucal · 2019
    Meta-analysis6 studies pooledAnti-Inflammatory Support forBromelain
  3. Placebo-controlled randomized clinical trial on the immunomodulating activities of low- and high-dose bromelain after oral administration - new evidence on the antiinflammatory mode of action of bromelain.
    Müller S; März R; Schmolz M; Drewelow B; Eschmann K; Meiser P · Phytotherapy research : PTR · 2013
    Randomized trial12 participantsAnti-Inflammatory Support forBromelain
  4. An Evaluation of the Effects of Pineapple-Extract and Bromelain-Based Treatment after Mandibular Third Molar Surgery: A Randomized Three-Arm Clinical Study.
    Colletti A; Procchio C; Pisano M; Martelli A; Pellizzato M; Cravotto G · Nutrients · 2024
    Randomized trial42 participantsAnti-Inflammatory Support forBromelain
  5. Therapeutic uses of pineapple-extracted bromelain in surgical care - A review.
    Muhammad ZA; Ahmad T · JPMA. The Journal of the Pakistan Medical Association · 2019
    Narrative reviewAnti-Inflammatory Support forBromelain
  6. The effect of hydro alcoholic Nettle (Urtica dioica) extracts on insulin sensitivity and some inflammatory indicators in patients with type 2 diabetes: a randomized double-blind control trial.
    Namazi N; Esfanjani AT; Heshmati J; Bahrami A · Pakistan journal of biological sciences : PJBS · 2012
    Randomized trial50 participantsAnti-Inflammatory Support forStinging Nettle
  7. Urtica Dioica Root Extract on Clinical and Biochemical Parameters in Patients with Benign Prostatic Hyperplasia, Randomized Controlled Trial.
    Akbar Karami A; Sheikhsoleimani M; Reza Memarzadeh M; Haddadi E; Bakhshpour M; Mohammadi N; Mehdi Mirhashemi S · Pakistan journal of biological sciences : PJBS · 2021
    Randomized trial60 participantsAnti-Inflammatory Support forStinging Nettle
  8. Safety, Tolerability, and Efficacy of Hox Alpha, a Dry Extract from Stinging Nettle Leaves versus OTC NSAIDs in Osteoarthritis: A Retrospective, Propensity-Matched 12-Week Analysis from the German Pain e-Registry (SIPHARO Study).
    Überall MA; Küster MA; Müller-Schwefe PCG; Müller-Schwefe GHH · Journal of pain research · 2026
    Cohort study2,146 participantsAnti-Inflammatory Support forStinging Nettle
  9. [Recommendations of the DGRh Committee on Complementary Medicine and Nutrition on the application of selected phytotherapeutic drugs and herbal medicines in rheumatology].
    Keyßer G; Seifert O; Frohne I; Michalsen A; Pfeil A; Reuß-Borst M; Sander O · Zeitschrift fur Rheumatologie · 2025
    Guideline / consensusAnti-Inflammatory Support forStinging Nettle
  10. Randomized controlled trial of nettle sting for treatment of base-of-thumb pain
    C Randall, H Randall, F Dobbs, C Hutton, H Sanders · Journal of the Royal Society of Medicine · 2000
    Randomized trial27 participantsAnti-Inflammatory Support forStinging Nettle
  11. Efficacy of Vitamin C as Glucocorticoid Substitute for Reducing Pain and Inflammation After Total Hip Arthroplasty: A Randomized Controlled Trial.
    Jiang W; Xu H; Jiang X; Zhan Y; Ju Y; Xie J; Huang Z; Huang Q; Pei F · The Journal of bone and joint surgery. American volume · 2025
    Randomized trial107 participantsAnti-Inflammatory Support forVitamin C
  12. The Impact of Vitamin C on Analgesic, Anti-inflammatory, and Hemostatic Outcomes After Total Hip and Knee Arthroplasty: A Systematic Review and Meta-Analysis.
    Moftakhari Hajimirzaei S; Bagherzadeh Cham M; Dolikhani M; Tabatabaee SM; Ebrahimpour A · The archives of bone and joint surgery · 2026
    Meta-analysis1,162 participants10 studies pooledAnti-Inflammatory Support forVitamin C
  13. The impact of vitamin C supplementation on the perioperative outcomes after total hip and knee arthroplasty: a systematic review and meta-analysis.
    Liu X; Guo J; Li Y; Yang Y; Liu M; Gao Q; Yang Y; Wu X; Yue C · BMC musculoskeletal disorders · 2026
    Meta-analysis852 participants8 studies pooledAnti-Inflammatory Support forVitamin C
  14. Therapeutic Impact of Ascorbic Acid on Oral and Periodontal Tissues: A Systematic Literature Review.
    Ruzijevaite G; Acaite E; Jagelaviciene E · Medicina (Kaunas, Lithuania) · 2025
    Systematic review811 participants17 studies pooledAnti-Inflammatory Support forVitamin C
  15. Oral vitamin C administration reduces early recurrence rates after electrical cardioversion of persistent atrial fibrillation and attenuates associated inflammation.
    Korantzopoulos P; Kolettis TM; Kountouris E; Dimitroula V; Karanikis P; Pappa E; Siogas K; Goudevenos JA · International journal of cardiology · 2005
    Randomized trial44 participantsAnti-Inflammatory Support forVitamin C