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DOSERANKEVIDENCE-BASED SUPPLEMENTSFull analysis

The short answer · Pain intensity

Take dl-phenylalanine for pain intensity. This is the one to buy.

Nutra BioGenesis, Ultra Lean™ Appetite Control, 120 Capsules
1

Nutra BioGenesis, Ultra Lean™ Appetite Control, 120 Capsules

4.2· 33 ratings· $1.47/serving

DoseRank score36

DL-Phenylalanine 1000 mg — inside the studied 1000-2500 mg window

Of 912 products scored for Pain intensity, Nutra BioGenesis, Ultra Lean™ Appetite Control, 120 Capsules ranks #1 with a DoseRank score of 36. Evidence is still thin for DL-Phenylalanine.

View on iHerb— $1.47/sv60-sec quiz instead

Retailer links may be affiliate links. Rankings and placement are never paid.

The form“Why DL-Phenylalanine — not Magnesium Malate?”Evidence Limited evidence

Evidence is still thin for DL-Phenylalanine.

  • DL-PhenylalanineThe pick

    Limited evidence · 1000 mg

    Racemic mix of D- and L-phenylalanine; the L-form feeds dopamine and norepinephrine while the D-form may slow enkephalin breakdown, used for mood and pain.

  • Magnesium Malate

    Limited evidence · 500 mg

    Magnesium chelated to malic acid, a Krebs-cycle intermediate; a well-tolerated form often chosen for energy support and muscle fatigue rather than as a laxative.

Buy the #1 pick
The dose“Is the dose actually effective?”Dose fit 67

Dose-range data is not available for this formula yet.

DL-Phenylalanine

Studied window 1000-2500 mg · this pick 1000 mg

50 mg
500 mcg
100 mg
375 mg
75 mg
600 mg
25 mg
The ranking“Why should I trust this pick?”Trust 36

Limited trust signals so far for this listing. Each product gets a DoseRank score blending clinical strength, evidence, dose fit, trust and value. Retailer links may be affiliate links — the scoring model decides placement, never payment from a brand.

  • 912 products scored
  • Never paid placement
  • Evidence level: Limited · 60
  • 167 brands
  • 5 ingredients
See the full analysis — every score, every productHow the ranking works
The price“Can I do better than $1.47 a serving?”Value 20

$1.47 per serving — high price tier for this outcome. The cheapest ranked pick here is $0.15 per serving.

  • 4
    Nutricost, Magnesium Malate, Unflavored, 10.7 oz (300 g)Score 24 · $0.15/serving
    iHerb
  • 7
    Nature's Life, Renewing Magnesium Malate, 250 Tablets (200 mg per Tablet)Score 24 · $0.20/serving
    iHerb

Why not the absolute cheapest? The DoseRank score also weighs clinical strength, evidence, dose fit and trust — the very cheapest listings rarely hold up everywhere else.

Ready?

The #1 pick is $1.47 a serving.

Nutra BioGenesis, Ultra Lean™ Appetite Control, 120 Capsules — in stock at a tracked retailer.

View on iHerb
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Questions

Frequently asked

Nutra BioGenesis, Ultra Lean™ Appetite Control, 120 Capsules ranks #1 for Pain intensity with a DoseRank score of 36. The score blends clinical strength, evidence, dose fit, trust signals and value across 912 products scored for this outcome.

Evidence is still thin for DL-Phenylalanine.

Dose-range data is not available for this formula yet. DoseRank scores this product's dose fit at 67 out of 100.

Nutra BioGenesis, Ultra Lean™ Appetite Control, 120 Capsules works out at $1.47 per serving. $1.47 per serving — high price tier for this outcome. The cheapest ranked pick here is $0.15 per serving.

No. Retailer links may be affiliate links, but rankings and placement are never paid. Every product is scored by the same public model, and the ranking is recomputed from the underlying product data rather than edited by hand.

Keep exploring

Other outcomes

  • Back painPain localized to the back.

Use rankings as research support

DoseRank rankings are informational and not medical advice. If you are pregnant, breastfeeding, using medications, or managing a health condition, ask a qualified clinician whether a supplement fits your situation. Stop use and report concerning adverse events to a clinician, the product maker, or the retailer.

Disclosure

Retailer links may be affiliate links. Rankings and placement are not paid placement.

Nutra BioGenesis, Ultra Lean™ Appetite Control, 120 Capsules

$1.47/serving · ★ 4.2 · In stock

60-sec quizView on iHerb