What are the Ingredients in PeakO2?

November 16, 2025 •

3 min read

According to Compound Solutions, the creator of PeakO2, this patented blend has been clinically studied to improve oxygen utilization and athletic performance. Curious what are the ingredients in PeakO2? This ergogenic aid is an organic-certified combination of six unique adaptogenic mushrooms.

Quick Summary

PeakO2 is a proprietary blend of six adaptogenic mushrooms, including Cordyceps, Reishi, Lion's Mane, King Trumpet, Shiitake, and Turkey Tail, designed to enhance athletic endurance and oxygen uptake.

Key Points

Six Adaptogenic Mushrooms: PeakO2 is a patented blend of six organic, USA-grown mushroom species: Cordyceps, Reishi, King Trumpet, Shiitake, Lion's Mane, and Turkey Tail.
Enhanced Oxygen Utilization: The active compounds in PeakO2 are clinically proven to improve oxygen uptake and efficiency during exercise, leading to higher VO2 max.
Increased Endurance and Power: Studies show that PeakO2 supplementation can increase time to exhaustion and boost peak power output, helping athletes train harder for longer periods.
Accelerated ATP Regeneration: By improving oxygen use, the mushroom blend helps regenerate ATP, the body's primary energy source, more rapidly, thereby delaying the onset of fatigue.
Reduced Oxidative Stress: The antioxidant properties of the mushrooms, particularly King Trumpet, help combat free radical damage and reduce exercise-induced oxidative stress.
Supports Mental Performance: Ingredients like Lion's Mane contribute to improved focus and mental clarity, which is crucial for maintaining performance during strenuous activities.
Broad Adaptogenic Benefits: The blend helps the body manage and adapt to physical and mental stress, resulting in overall increased resilience and faster recovery.

The Six Key Mushroom Ingredients in PeakO2

PeakO2 includes both the mycelium and fruiting bodies of six specific organic mushroom strains cultivated in the United States. Each mushroom provides unique properties contributing to the blend's adaptogenic and performance-enhancing effects.

1. Cordyceps (Cordyceps militaris)

Known as the “Olympic mushroom,” Cordyceps is recognized for boosting energy and stamina. It's suggested to improve endurance and athletic recovery by potentially enhancing oxygen consumption and ATP production.

2. Reishi (Ganoderma lucidum)

Reishi is included for its calming and stress-reducing properties. It contains compounds that may help manage stress and anxiety, potentially supporting mental clarity and recovery, while its antioxidants may protect cells from damage.

3. King Trumpet (Pleurotus eryngii)

This mushroom is valued for its high antioxidant content, which may help protect against oxidative stress. King Trumpet also offers nutrients that could support immune function and cardiovascular health.

4. Shiitake (Lentinula edodes)

Shiitake mushrooms provide immune support, heart health, and overall wellness benefits. Rich in B vitamins, fiber, and antioxidants, Shiitake may help modulate the immune system and regulate cholesterol.

5. Lion's Mane (Hericium erinaceus)

Lion's Mane is associated with cognitive benefits due to compounds that may support nerve growth factor (NGF) production, potentially improving focus. It also offers digestive and immune support.

6. Turkey Tail (Trametes versicolor)

Recognized for immune-boosting properties from polysaccharides like PSP and PSK, Turkey Tail may help the body recover effectively from exercise stress. It also has adaptogenic qualities.

How the PeakO2 Ingredients Work Together

PeakO2 is an adaptogenic blend designed to help the body resist stress. The combination of these six mushrooms enhances oxygen utilization and improves aerobic performance, potentially increasing VO2 max, work capacity, and delaying exhaustion. The blend's compounds and antioxidants may combat oxidative stress and support faster ATP regeneration. This makes it a comprehensive supplement for various athletic activities.

Comparison: PeakO2 vs. Single Mushroom Supplements


Feature	PeakO2 Blend	Single Mushroom Supplement (e.g., Cordyceps)
Ingredient Profile	A synergistic blend of six adaptogenic mushrooms.	Focuses on a single mushroom type, like Cordyceps.
Mechanism of Action	Combats physical and mental stress from multiple angles, supporting oxygen utilization, ATP, and antioxidant levels.	Targets specific pathways related to that single mushroom, such as energy production from Cordyceps.
Versatility	Offers a broad range of benefits, including endurance, cognitive support, and immune health.	Provides a more targeted benefit, potentially missing the broader support offered by a blend.
Performance Impact	Supports a wider range of performance markers, including peak power, VO2 max, and time to exhaustion.	Effects are limited to the specific properties of the single mushroom.
Source Quality	Patented and organic-certified blend from a reputable supplier (Compound Solutions).	Quality can vary widely depending on the brand, source, and growing methods.

The Takeaway: A Holistic Approach to Performance

PeakO2 offers a holistic approach to enhancing athletic performance by combining six organic mushrooms. The blend works to improve oxygen uptake, boost ATP production, delay fatigue, and increase work capacity. This results in a natural supplement supporting athletes in pushing their limits and recovering effectively. It's a versatile aid for various training regimens.

Conclusion

In summary, PeakO2 contains a blend of six adaptogenic mushrooms: Cordyceps, Reishi, King Trumpet, Shiitake, Lion's Mane, and Turkey Tail. Each mushroom offers complementary benefits, working synergistically to help the body manage physical and mental stress. The blend improves oxygen utilization, increases ATP production, and provides antioxidant support, contributing to enhanced endurance, power, and overall athletic performance. This makes it a comprehensive, natural supplement supporting athletes in training and recovery.

Visit Compounds Solutions' Website for additional details on the science behind PeakO2.

Frequently Asked Questions

The primary function of PeakO2 is to act as an ergogenic aid by enhancing the body's oxygen utilization and increasing its ability to adapt to physical stress, which ultimately improves athletic endurance and power output.

Yes, the six mushrooms in the patented PeakO2 blend are all USDA organic-certified and are grown and harvested in the United States.

While some users report acute benefits, PeakO2 is a 'loading phase' ingredient, and its most significant performance benefits are experienced with consistent, daily consumption over time. Clinical trials have shown notable results in as little as 7 to 28 days.

Unlike a single mushroom supplement, PeakO2 provides a broader range of benefits by combining six different adaptogenic mushrooms. This creates a synergistic effect that more comprehensively supports energy, oxygen utilization, stress adaptation, and recovery.

Yes, PeakO2 is vegan-friendly and gluten-free, making it suitable for those with various dietary preferences and needs.

In studies, PeakO2 has been well-tolerated. It is made from natural mushrooms and is free from common additives, making it a clean supplement option. Individual experiences can vary, but it does not have the 'tingle' sensation associated with some other performance supplements like beta-alanine.

For optimal results, consistent daily intake is recommended. Dosages typically range from 1 to 4 grams per day, depending on the product and desired speed of results. It is often mixed with water, smoothies, or pre-workout drinks.