Jarrow Formulas Energy Optimizer is an energy booster that enhances everyday energy and athletic endurance, helping you stay resilient through workouts and busy days. Active ingredients include PeakO2 mushroom blend and Sensoril ashwagandha, built to boost energy, endurance, and stress resilience. Jarrow Formulas upholds strict cGMP manufacturing for purity and consistency.

Available Sizes & Variants:

90 vegan capsules - a convenient daily dose for a full month.

Benefits & Features:

• Boosts everyday energy for workouts and routines.
• PeakO2 mushroom blend supports endurance and faster recovery.
• Sensoril ashwagandha helps manage stress for clearer focus.
• Suitable for vegetarians and vegans, and free from major allergens.
• Everyday routine support delivered through a thoughtful blend that, with standardised actives and a plant-based capsule, provides reliable energy, steady performance, and reduced fatigue through the day.

Jarrow Formulas is known for premium manufacturing, with cGMP across production steps for purity and potency. PeakO2 offers a robust 1000 mg daily dose, combining cordyceps, reishi, lion’s mane, shiitake, king trumpet, and turkey tail, while Sensoril ashwagandha root and leaf extract at 250 mg daily supports resilience to stress and vitality. The brand uses standardised extracts and traceable manufacturing, with vegetarian capsules suitable for many lifestyles. For a well rounded routine, magnesium glycinate and coq10 are popular companions to energy support.

Calories, Total Carbohydrate, Sensoril Ashwagandha (Withania somnifera) (Root and Leaf) Extract, Calories, Total Carbohydrate, Sensoril Ashwagandha (Withania somnifera) (Root and Leaf) Extract

• GTIN: 790011350019
• Manufacturer: Jarrow Formulas
• Categories: Best SellersJarrow Formulas
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take 3 capsules once daily, preferably with a meal. Store in a cool, dry place. Consult a doctor before use if you are pregnant, nursing, taking medication, or have a medical condition. Keep out of reach of children.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Primary Ingredient Is: Ashwagandha (Sensoril extract)

Ashwagandha is a adaptogenic herb known for supporting daily energy and resilience. This form, Sensoril extract, is a standardised preparation derived from Withania somnifera and is selected for consistency and potency.

This formulation uses Sensoril as the primary active ingredient, with the overall blend designed for reliable adaptogenic support and vitality through stress-related pathways.

What Does Ashwagandha Do?

Ashwagandha helps support normal stress response and may contribute to maintaining energy and stamina during daily activities. Scientific discussion notes its role in modulating stress and promoting vitality, in line with standard nutrient function concepts.

Dr. Kennedy of a university found that Ashwagandha extract reduced fatigue and supported energy levels in adults, reflecting its ongoing investigation into stress resilience and physical stamina.

This supplement is not intended to diagnose, treat, cure, or prevent any disease.

Jarrow Formulas Energy Optimizer stands out for its maker’s track record of premium quality and strict manufacturing discipline. Jarrow Formulas is recognised for implementing current Good Manufacturing Practices (cGMP) across every production step, ensuring purity, potency and consistent quality. The brand also values trusted ingredients and patented actives, such as PeakO2 and Sensoril, with traceable manufacturing processes that underscore their reliability.

This product blends a thoughtfully designed energy and endurance formulation that teams a mushroom blend with Ashwagandha to support energy, stamina and stress resilience. The blend matches the brand’s emphasis on effectiveness through clinically studied components, delivered at a daily dosage that mirrors evidence-based ranges.

Welzo looked at Jarrow Formulas through our expert lens, weighing manufacturing philosophy, ingredient sourcing and quality controls, and we found a partner with a clear dedication to safety and consistency. For a closer look at how we assess partners, check out our expert team of doctors, nurses, and nutritionists, and the certifications we require at the certifications we require.