OcuThera is an eye health supplement that delivers strong antioxidant support to guard the lens, retina and macula from light-induced oxidative damage as you age. Active ingredients such as lutein and zeaxanthin help filter blue light from the macula, and vitamins C and E offer broad antioxidant protection. Klaire Labs is recognised for professional-grade, allergen-free formulations and stringent quality controls that set the standard in specialist nutrition.

Available Sizes & Variants:

60 capsules OcuThera - standard daily supply for ongoing eye health support.

Benefits & Features:

• Supports eye health with solid antioxidant protection.
• Lutein and zeaxanthin concentrate in the macula, filtering blue light and guarding photoreceptors, helping keep clear, comfortable vision as you age, supporting long term eye comfort.
• N-acetyl cysteine and glutathione help support retinal cell function and replenish the eye's master antioxidant.
• Formulated without common allergens and artificial additives, making daily use safer for a broad range of diets.
• Klaire Labs' professional-grade manufacturing ensures each batch meets strict purity and potency standards, with a vegetarian capsule that suits a wide range of dietary needs while staying allergen safe.

Klaire Labs' OcuThera is rooted in a long-standing commitment to purity and clinical relevance. The formula fuses macular pigments lutein and zeaxanthin with potent antioxidants such as vitamin C and E, plus NAC and taurine to support retinal function. Bilberry extract with 25–36% anthocyanosides and red grape phytonutrients helps protect microcirculation in the eye, while alpha-lipoic acid adds extra antioxidant power. Klaire uses vegetarian capsules and allergen controls, a heritage that many clinicians trust; plus the broad Klaire Labs portfolio includes a vitamin d supplement, fibre supplements for constipation and probiotics for good measure.

(other) Vegetarian capsule (hydroxypropyl methylcellulose, water), ascorbyl palmitate, microcrystalline cellulose, silicon dioxide, and natural orange flavour.

• GTIN: 828054002500
• Manufacturer: Klaire Labs
• Categories: Best SellersKlaire LabsNew ArrivalsPopular Supplement BrandsSubscribe & Save Products
• 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.

Consume 2 capsules daily with a meal or as instructed by a medical expert. As a food supplement\, take 1 softgel daily\, with a meal\, or as directed by a healthcare professional.

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

1. Promotes Healthy Vision: OcuThera contains a blend of essential vitamins and nutrients that support the health of the eyes and promote clear vision. These ingredients help to protect against age-related eye diseases such as macular degeneration and cataracts.
2. Reduces Eye Fatigue: With the increase in screen time and digital device usage, many people experience eye strain and fatigue. OcuThera contains ingredients like lutein and zeaxanthin that are known to reduce eye fatigue, making it a great supplement for those who spend a lot of time on digital devices.

The Active Ingredient Is: Vitamin C (L-ascorbic acid)

Vitamin C is a water-soluble vitamin that comes from fruits and vegetables, and it plays a key role in antioxidant protection. This section refers to the L-ascorbic acid form, a commonly used and highly bioavailable format for nutritional supplements.

This form is offered as a premium antioxidant nutrient designed to support ocular tissues through conventional bioavailability and utilisation pathways.

What Does Vitamin C Do?

Vitamin C helps protect cells from oxidative stress and supports antioxidant defence in ocular tissues such as the lens and retina, in line with EFSA guidance on nutrient function.

Its activity supports the overall antioxidant system inside the eye, helping maintain normal physiological functions in visual tissues.

Klaire Labs really stands out as our chosen supplier for OcuThera because its heritage in the clinical and practitioner market is built on professional-grade, pharmaceutical-quality manufacturing practices. This brand is renowned for strict purity and potency standards, allergen control, and a long-standing commitment to specialised nutrition, which aligns with Welzo’s emphasis on trust and safety. Klaire Labs’ approach to quality is supported by a track record of rigorous processes that prioritise safety and consistent ingredient quality, complemented by non-GMO and vegetarian formulations that suit a broad audience. For our team, this brand’s established reputation in sensitive and clinical settings reinforced our confidence in its credibility; we recognise Klaire Labs as a leader in specialty supplementation. Our evaluation was enhanced by engaging with our team of medical experts and by reviewing our ingredient quality and purity standards to ensure alignment with Welzo’s requirements. This match makes Klaire Labs especially well suited for OcuThera as a targeted eye health formulation.