Task: Analyze the products at the following links for specific ingredients to create the most cost-effective and efficient supplement stack. Your goal is to identify complex supplements that offer the maximum dosage and most active forms of the following ingredients at the lowest price. Ensure that the supplements have adequate active substance per serving and avoid single-ingredient supplements due to higher costs.

Ingredients to analyze:
 L-Theanine: Typically effective at 200-400 mg. Often found in products aimed at relaxation and focus.
Guarana: Standardized for caffeine, typically 200-400 mg of guarana provides 40-80 mg of caffeine. It is useful for energy and focus.
Tyrosine: Effective at 500-2000 mg for cognitive function under stress.
Ashwagandha: With 25% withanolides, 300-600 mg is often used for stress reduction.
Bacopa Monnieri: Standardized for bacosides (50%+), 300-500 mg for memory and cognitive enhancement.
Rhodiola Rosea: Standardized to 25% rosavins, 15% salidroside; 200-400 mg for stress and fatigue.
Citicoline (CDP-Choline) and Alpha-GPC: Effective for cognitive enhancement, typically at 250-500 mg.
Phosphatidylserine: 100-300 mg per day for memory support.
Huperzine A: 50-200 mcg as a nootropic.
Tribulus Terrestris: Look for products with at least 90% saponins, 500-1500 mg is common.
Eleutherococcus
Lions mane
Lecithin
Nettle
Pyracetam
Fenugreek: Often standardized to 50% fenusides, 300-600 mg for testosterone support.
Maca Root: 1.5-3 g for energy and libido.
Ginseng (Panax or Siberian): Standardized extracts (25%+ ginsenosides for Panax), 100-400 mg.
Tongkat Ali: Standardized to 100:1 extract, typically 200-400 mg for testosterone.
Horny Goat Weed: Standardized to icariin (60%), typically 250-500 mg.
5-HTP: 50-200 mg for sleep and mood.
GABA: 250-750 mg for relaxation and sleep.
Valerian Root: 400-900 mg for sleep.
Lemon Balm: 300-600 mg for relaxation.
Melatonin: 1-3 mg for sleep onset.
Alpha-Lipoic Acid (ALA): 200-600 mg for antioxidant support.
Ubiquinol (CoQ10): 100-200 mg for mitochondrial support.
Curcumin: Often combined with black pepper extract for absorption, 500-1000 mg.
Milk Thistle: Standardized to 80% silymarin, 300-600 mg for liver health.
N-Acetyl Cysteine (NAC): 600-1200 mg for liver and detoxification.
Probiotic Complex: Look for 10-20 billion CFUs with diverse strains.
Prebiotics & Fiber: Inulin, FOS, or other prebiotic fibers.
Royal jelly

Websites for Analysis:
- ostrovit.com
- olimpsport.com
- shop.biotechusa.at
- myprotein.com
- jarrow.com
- swansonvitamins.com
- scitec.at
- nutrabio.com
- trec.co.uk
- bodypak.pl
- fanutrition.pl
- allnutrition.com
-muscle-lab.de
-bodyshock.pro

Instructions:

Identify Supplements: Find complex supplements that include the ingredients listed above.
Dosage and Form: Ensure that the supplements provide maximum dosages and use the most active forms of the ingredients.
Cost-Effectiveness: Aim for the lowest price for the highest quality and effectiveness.
Minimum Packages: Aim to minimize the number of different cans and packages required.
Example: If the budget is 100 euros, do not opt for separate jars of ashwagandha for 30 euros, melatonin for 30 euros, and tribulus for 30 euros. Instead, find a single supplement that combines these ingredients in high doses and active forms for around 30 euros.

Objective: Create a supplement stack that is both budget-friendly and effective, minimizing the number of products while maximizing dosage and ingredient quality.