What sizes does the Ebene Bio Ray Knee Guard come in?

Sizing is based on the circumference of the lower thigh measured about one inch above the kneecap; check the size chart on the product packaging or listing before ordering.

Does the knee guard contain metal parts?

Some versions of this knee guard include flexible metal side stays for added structural support; check the specific product listing for your chosen variant.

Can this knee guard be worn during sport or exercise?

It is generally designed for daily and activity wear, but anyone with a specific sports injury should confirm suitability with a doctor or physiotherapist first.

Is this knee guard washable?

Yes, it is generally intended to be reused; follow the care instructions on the packaging, and hand-washing is usually recommended to protect the fabric and any internal stays.

Can this knee guard be worn overnight?

New users are generally advised to build up wear time gradually during the day before considering longer or overnight use; check the packaging instructions and consult a healthcare professional if unsure.

Is a prescription needed to purchase this knee guard?

No, this is an over-the-counter support device and does not require a prescription.

Can I purchase Ebene Bio Ray Knee Guard online through DoctorOnCall in Malaysia or Singapore?

Yes, Ebene Bio Ray Knee Guard is available for purchase through DoctorOnCall as an online pharmacy serving customers in Malaysia and Singapore. As with any over-the-counter product, please read the product label and follow the recommended directions, and speak with our pharmacist team if you have any questions before ordering.

Is Ebene Bio Ray Knee Guard supplied by DoctorOnCall genuine and safe to use?

Products supplied through DoctorOnCall are sourced and handled through the appropriate pharmacy supply process. As with any product, please use Ebene Bio Ray Knee Guard according to the product instructions, and contact our pharmacist team if you have any concerns about your order.

What payment methods does DoctorOnCall accept?

We accept payment via Online Banking, Credit Card, and e-Wallets (Boost, GrabPay), so you can choose whichever method is most convenient for you at checkout.

Does DoctorOnCall provide an installment payment plan for Ebene Bio Ray Knee Guard?

DoctorOnCall provides an installment payment plan for eligible purchases where applicable. Available plans, eligibility, and terms can vary, so please contact DoctorOnCall Customer Service for the latest information on installment options for your order.

Is delivery free, and how much does it cost?

Delivery charges may depend on your delivery location and the applicable order and delivery terms. For the latest delivery fee information for Malaysia or Singapore, please contact DoctorOnCall Customer Service.

How long will it take for my order to arrive?

Orders to Malaysia are generally delivered within 3-5 working days, and orders to Singapore are generally delivered within 5-9 working days, although actual delivery time may vary depending on the delivery location, order processing, courier operations, weekends, and public holidays.

What is DoctorOnCall’s shipping, return, or cancellation policy for Ebene Bio Ray Knee Guard?

Shipping, return, and cancellation terms may vary depending on the product, your order details, and whether you are ordering from Malaysia or Singapore. Please refer to DoctorOnCall’s Shipping & Delivery Policy and Return, Refund & Exchange Policy, or contact Customer Service, for the specific terms that apply to your order.

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Reviewed byDr. Mohd Izzat Amir Bin AwangDoctor of Medicine (MD), University of Mansoura - Manchester

Written byDr. Adeline Carol PetersBachelor of Medicine and Bachelor of Surgery (MBBS) — Manipal Academy of Higher Education (MAHE)

Last updated: October 18, 2026

Overview

Ebene Bio Ray Knee Guard is a fabric knee support fitted around the knee joint, incorporating flexible side stays and mineral-embedded fabric marketed under the “Bio-Ray” name. It is designed as a wearable brace rather than a medicine.

This product is sold over the counter as a support and compression device and is available in multiple sizes based on thigh circumference measured above the kneecap. It does not contain any active pharmaceutical ingredient.

Directions for Use

Measure the circumference of the lower thigh, about one inch above the kneecap, to select the correct size. Slide the guard over the knee so it sits centred on the kneecap, and adjust any straps or closures for a snug but comfortable fit. First-time users should wear it for a short period before gradually increasing wear time as the area becomes accustomed to the support.

Storage Instructions

Store in a clean, dry place away from direct sunlight. Hand-wash and air-dry according to the care label rather than machine washing, unless stated otherwise on the packaging.

Side Effects

Common: Mild skin marking or pressure lines after extended wear.
Common: Warmth or a snug sensation around the knee.
Serious: Numbness, tingling, or discolouration of the lower leg, which may indicate the guard is too tight and needs immediate loosening or removal.

Contraindications

Do not wear over broken, infected, or actively bleeding skin.
Do not use if there is a known allergy to the fabric or metal components.
Avoid use over an undiagnosed or worsening knee injury without first consulting a doctor or physiotherapist.

Drug / Food Interactions

Not applicable — this is a wearable support device and does not interact with medicines or food.

Quick Tips

Measure thigh circumference carefully before purchase to select the correct size.
Build up wearing time gradually rather than wearing it for extended periods from the start.
Remove periodically to let the skin rest, especially during long periods of wear.
Check the metal side stays are not bent or protruding before each use.
Hand-wash rather than machine-wash to preserve elasticity and the side stays.

Ingredients / Active Ingredients

Elasticated fabric blend (commonly nylon, spandex, and polyester) incorporating mineral-embedded fibres marketed as "Bio-Ray".
Flexible metal side stays for structural support, in variants that include them.
Hook-and-loop or clip fastening components.

Relevant Information

Precautions: This support is intended to be worn externally over clothing or directly on the skin as directed on the packaging. It should not be used as a substitute for a proper medical diagnosis of knee pain or injury. People with circulation problems, diabetes, or reduced skin sensation should seek medical advice before regular use.

When to See a Doctor or Pharmacist: Seek medical advice if knee pain is severe, worsening, or associated with swelling, instability, or inability to bear weight, or if numbness or colour change develops in the leg while the guard is worn.

Frequently Asked Questions

Product Specifications

Classification	Non-prescription
Size	XXL
Pack Size	2s
Dosage	Not applicable — this is a wearable support device, not a medicine. Wear duration should be built up gradually and adjusted based on comfort.
Shelf Life	No expiry date applies to this fabric support; check for wear and tear over time and replace if the elastic or stitching deteriorates.