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Alpha Lipoic Acid (ALA) is attracting growing research interest as a nutritional support for women with Polycystic Ovary Syndrome (PCOS), particularly for its effects on insulin sensitivity and oxidative stress, two of the defining metabolic features now reflected in the condition's new name.
An important update: On 12 May 2026, an international consensus published in The Lancet renamed Polycystic Ovary Syndrome (PCOS) to Polyendocrine Metabolic Ovarian Syndrome (PMOS). The new name reflects the condition's metabolic nature, including insulin resistance and oxidative stress, both of which are central to why ALA is relevant to PCOS management. Both names will be used during the transition to the 2028 ICD update. Read our explainer on what the rename means for your hormones and fertility.
Zita West Alpha Lipoic Acid provides a potent antioxidant specifically relevant for women with PCOS (PMOS) where oxidative stress and insulin resistance are key concerns. For a broader nutritional approach to PCOS (PMOS), the PCOS Support Pack brings together multiple targeted nutrients in one place.
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Polycystic Ovary Syndrome (PCOS), now also referred to as Polyendocrine Metabolic Ovarian Syndrome (PMOS), is a common hormonal and metabolic disorder affecting women of reproductive age. It is characterised by irregular menstrual cycles, elevated androgen levels and polycystic ovaries. Women with PCOS (PMOS) may experience symptoms such as weight gain, acne, hair loss and challenges conceiving.
The 2026 rename to PMOS was chosen to better reflect the condition's metabolic nature, with insulin resistance now understood as a central driver of many of its symptoms. This is particularly relevant to Alpha Lipoic Acid, which works primarily through metabolic and antioxidant pathways.
Alpha Lipoic Acid (ALA) is a naturally occurring compound found in every cell of the body. It plays a role in energy production and acts as a potent antioxidant. Unlike many other antioxidants, ALA is both water and fat-soluble, meaning it may work throughout the body's tissues rather than being limited to one environment. It is found in small amounts in foods such as spinach, broccoli and organ meats, but the doses associated with therapeutic benefit are generally only achievable through supplementation.
Research suggests ALA may support several of the mechanisms that underlie PCOS (PMOS):
Insulin resistance is central to PCOS (PMOS) and is now reflected in the condition's new name. ALA has been shown in research to support improved insulin sensitivity, potentially by activating glucose transport pathways and reducing oxidative damage to insulin signalling mechanisms. A 2018 study published in Gynecological Endocrinology found that ALA supplementation significantly improved insulin sensitivity and reduced insulin levels in women with PCOS, though the authors noted that further larger trials are needed.[1]
Oxidative stress is elevated in women with PCOS (PMOS) and may contribute to hormonal disruption, impaired ovulation and reduced egg quality. ALA's dual solubility allows it to neutralise free radicals in both water-based and fat-based environments within the body, and it also supports the regeneration of other antioxidants including vitamin C, vitamin E and glutathione. This broad antioxidant activity makes it particularly relevant in the context of PCOS (PMOS) where systemic oxidative burden is a recognised feature.
Research suggests ALA may support more regular menstrual cycles and improved ovulation in women with PCOS (PMOS), likely through its effects on insulin sensitivity and androgen reduction. The evidence is not yet conclusive and more research is needed, but the mechanistic rationale is well supported.[1]
A potent antioxidant that is both water and fat-soluble, relevant for women with PCOS (PMOS) where oxidative stress and insulin resistance are key concerns. May be taken alongside other PCOS-specific supplements as part of a broader support plan.
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A balanced diet is important for managing PCOS (PMOS), particularly in relation to blood sugar regulation. Focus on whole foods including plenty of fruits, vegetables, lean proteins and whole grains. Reducing processed foods, excessive sugar and refined carbohydrates may help maintain more stable blood sugar levels, which is particularly relevant given insulin resistance's central role in PCOS (PMOS). Read our guide to the best fruits for PCOS (PMOS) here.
Regular moderate physical activity may help improve insulin sensitivity and support weight management in women with PCOS (PMOS). Aim for at least 30 minutes of moderate exercise most days. Walking, cycling and yoga are all relevant choices that support metabolic health without placing excessive stress on the HPA axis.
Stress may worsen PCOS (PMOS) symptoms through its effects on cortisol and the HPA axis, which can further disrupt hormonal balance. Mindfulness, meditation and deep-breathing exercises may help manage the stress response. Adequate sleep is also important for hormone regulation in women with PCOS (PMOS).
In addition to Alpha Lipoic Acid, several other supplements have evidence suggesting they may support women with PCOS (PMOS):
Brings together inositol and folate, NAC, omega-3, psyllium husk, Femceive probiotic and vitamin D in a single pack formulated for women with PCOS (PMOS). Each ingredient addresses a mechanism that research suggests may be relevant to managing the condition.
Shop the PCOS Support PackResearch suggests ALA may support insulin sensitivity and reduce oxidative stress in women with PCOS (PMOS), both of which are central features of the condition. The evidence is promising but not yet conclusive and ALA works best as part of a broader nutritional approach rather than in isolation.
Both ALA and NAC are antioxidants that may support insulin sensitivity and reduce oxidative stress in PCOS (PMOS), but they work through different mechanisms. ALA works across both water and fat-soluble environments and supports mitochondrial energy production, while NAC primarily works through glutathione synthesis. They may be complementary rather than interchangeable. Read more about NAC and PCOS here.
PMOS (Polyendocrine Metabolic Ovarian Syndrome) is the new name for PCOS, adopted following an international consensus published in The Lancet in May 2026. The condition is the same but the new name better reflects its wider hormonal and metabolic effects, including insulin resistance and oxidative stress. Read our full explainer on the rename.
Yes. ALA addresses specific metabolic and antioxidant pathways but works best as part of a broader approach. The Zita West PCOS Support Pack covers inositol, folate, NAC, omega-3, vitamin D and more in one formulation. If you would like guidance on what combination is right for your situation, book a free 1:1 fertility product consultation with our team.
External references: NHS: Polycystic ovary syndrome (PCOS) | The Lancet: PMOS consensus 2026
This content is for educational purposes only and is not intended to diagnose, treat, or replace medical advice. Always consult your healthcare provider before starting any new supplement, particularly if you have a hormonal condition such as PCOS (PMOS).
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