Siallac® Muscle Health: Science-Backed Support for Stronger Muscles

Why Muscle Health Matters

As we age, one of the biggest health challenges we face is the gradual decline in muscle strength and endurance. This process, often unnoticed at first, can limit mobility, reduce confidence, and impact overall quality of life. While protein powders and fitness supplements have long been associated with muscle growth, there is a growing need for solutions that help adults maintain and preserve muscle health over time—not just build bulk.

Siallac® Muscle Health was created to meet that need. Powered by 6′-Sialyllactose (6′-SL), a clinically studied form of human milk oligosaccharide (HMO), this supplement represents a breakthrough in biotechnology applied to adult wellness. Unlike traditional supplements, Siallac® focuses on supporting the body’s natural balance of muscle protein synthesis and breakdown, helping you stay strong and active as you age.

What Is 6′-Sialyllactose?

6′-Sialyllactose is a sialylated carbohydrate naturally found in human milk. While HMOs have historically been studied for their role in infant development, recent scientific advances reveal that certain HMOs, including 6′-SL, also play a vital role in adult health.

Research shows that 6′-SL:

• Helps inhibit muscle protein degradation while supporting protein synthesis.

• Promotes muscle fiber growth and regeneration.

• Supports endurance and exercise recovery by reducing fatigue markers.

• May contribute to the prevention of muscle atrophy in aging models.

These unique properties set 6′-SL apart as an innovative ingredient for preserving muscle strength and resilience throughout adulthood.

Key Benefits of Siallac® Muscle Health

• Supports muscle mass: In preclinical and clinical research, supplementation with 6′-SL has been shown to increase the production of myosin heavy chain proteins, which are essential for muscle contraction and growth. Studies also demonstrated measurable increases in the size of lower leg muscles such as the gastrocnemius and soleus.
• Improves muscle strength: Both animal and human studies have documented significant gains in grip strength and muscle performance following 6′-SL supplementation. Importantly, these improvements were seen not only in healthy subjects but also in models of muscle weakness, suggesting broad applicability.
• Reduces exercise-related fatigu: One of the hallmark findings from endurance studies is that 6′-SL reduces blood lactate levels—a key marker of muscle fatigue. This allows for improved work output, longer exercise duration, and faster post-workout recovery.
• Helps protect against muscle loss: In clinical models simulating age-related muscle decline, 6′-SL supplementation suppressed the activity of muscle-degrading pathways (including myostatin and atrogin-1) while preserving muscle fiber diameter and strength. This suggests that Siallac® may help adults maintain muscle resilience even under stress conditions.
• Made in the USA with Trusted Quality: All Siallac® products are manufactured in cGMP-certified facilities in the United States, so you can trust that what is on the label is what you are putting in your body.

The Science Behind Siallac®

Human data: In a 96-week randomized pilot study of individuals with muscle challenges, daily 6′-SL increased free sialic acid, was well tolerated, and showed dose-related improvements in select proximal limb motor powers, with MRI fat-fraction trends favoring the high-dose arm (Biomed Pharmacother, 2023).

Preclinical data: Independent studies demonstrated that 6′-SL increased muscle mass and fiber size, boosted total MHC expression, and improved running distance and time in mice (Nutrients, 2024). In a treadmill model, 6′-SL reduced blood lactate and increased slow-twitch markers and OXPHOS complexes—consistent with better endurance metabolism (Nutrients, 2024). In dexamethasone-induced atrophy models, 6′-SL suppressed catabolic signals (myostatin, MuRF1, atrogin-1) and helped preserve strength and muscle weight (BBRC, 2024).

Who It’s For

• Adults who want to stay active and strong as they age
• Those experiencing post-exercise fatigue and seeking better recovery
• People focused on healthy aging and independence
• Individuals who already use protein/creatine and want a complementary solution for muscle preservation

Unlike protein—which relies on training for hypertrophy—6′-SL works at the cellular level to help keep muscle protein turnover in balance, making it a valuable option even when vigorous training isn’t possible.

How to Use

Take Siallac® Muscle Health daily as part of your wellness routine. It can be combined with protein, creatine, or other supplements for complementary support.

Quality & Transparency

Siallac® products are manufactured in the United States in cGMP-certified facilities and are third-party tested for identity, purity, and safety. We communicate using structure/function language and include scientific references wherever possible, in line with FTC/FDA guidance.

Siallac® Muscle Health is more than just another supplement—it represents a new frontier in adult wellness. By leveraging the science of HMOs, and specifically 6′-Sialyllactose, this product helps adults support muscle mass, strength, endurance, and resilience in a way that is clinically validated and biologically meaningful.

Whether you are an athlete seeking better recovery or an adult aiming to stay strong as you age, Siallac® offers a solution rooted in science and backed by quality manufacturing.

References

1. Park V-E, et al. Pharmacokinetics and clinical efficacy of 6′-sialyllactose in patients with GNE myopathy: Randomized pilot trial. Biomed Pharmacother. 2023. https://doi.org/10.1016/j.biopha.2023.115689
2. Park EJ, et al. 6′-Sialyllactose Enhances Exercise Performance via Increased Muscle Mass and Strength. Nutrients. 2024. https://doi.org/10.3390/nu16162600
3. Park EJ, et al. 6′-Sialyllactose Alleviates Muscle Fatigue through Reduced Blood Lactate Level after Treadmill Exercise in Mice. Nutrients. 2024. https://doi.org/10.3390/nu16172957
4. Go H, et al. 6′-Sialyllactose prevents dexamethasone-induced muscle atrophy by controlling the muscle protein degradation pathway. Biochem Biophys Res Commun. 2024. https://doi.org/10.1016/j.bbrc.2024.150892