11 at-home tests covering fertility, hormones, sexual health and more, with UK laboratory analysis and clear results.

A bright blue INSTI HIV Self Test pouch with a printed demonstration of a finger prick and a small white test device, on a plain white background.

HIV self-test kit components arranged on a white background, including an Insti English test box, a temperature strip, a temperature indicator square, three sample vials with red, blue, and white caps, a blue-and-white temperature monitor, a plastic pipette, a sterile alcohol pad, and a sterile tape roll.

INST HIV self-test kit packaging on a light gray background

Collection of medical supplies on a wooden surface

UK Exclusive

INSTI At-Home HIV Self Test

Name: INSTI At-Home HIV Self Test
Brand: Insti
SKU: 90-1041-003/1-FEMME
Price: 15.99 GBP
Availability: InStock

£13.59

£13.59 ~~£13.59~~

In stock

1 single-use test

A private finger-prick HIV self-test detecting HIV-1 and HIV-2 antibodies with over 99% accuracy and results in approximately 60 seconds.

Results in around 60 seconds
Over 99% accurate
Private testing from home
Detects HIV-1 & HIV-2 antibodies
Simple finger-prick blood test
No laboratory wait required

*femme do not endorse products, nor do we confirm their effectiveness; instead we recommend that you always seek advice from your GP (and your fertility clinic, especially if you are taking prescribed fertility medication) before product use.

This product

Description

INSTI® HIV Self Test is a single-use at-home test that detects antibodies to HIV-1 and HIV-2 from a finger-prick blood sample.

The kit uses INSTI rapid flow-through technology and provides a visual result in approximately 60 seconds. Everything required to perform one test is included in the pack, including the test device, sterile lancet, prepared solutions and plaster.

A built-in control dot shows whether the test has run correctly. A reactive result requires confirmatory laboratory testing through an appropriate healthcare professional or sexual-health service.

Window period: a negative result may not reliably exclude a recent HIV infection. UK guidance uses a 90-day window period for rapid or self-tests, so repeat testing may be needed after a more recent exposure. If a possible exposure occurred within the last 72 hours, seek urgent medical advice about post-exposure prophylaxis (PEP) rather than waiting for a self-test result.

The test is intended for adults aged 18 and over and is for single use only. It is not suitable for people with a bleeding disorder, those taking antiretroviral treatment, or those who have participated in an HIV vaccine study.

This is a diagnostic self-test. Follow the instructions supplied with the kit carefully.

What's inside

1 x INSTI® HIV Self Test, containing:

1 x Test Device / Membrane Unit
1 x Sample Diluent (Bottle 1)
1 x Colour Developer (Bottle 2)
1 x Clarifying Solution (Bottle 3)
1 x Sterile single-use lancet
1 x Adhesive bandage
1 x Instructions for Use
1 x Resources Card

How it works

Read the enclosed instructions completely before beginning. Wash and dry your hands, then place the test device on a flat surface.

Use the supplied sterile lancet on the side of your fingertip and form one large drop of blood. Allow the drop to fall into Bottle 1, replace the cap and shake four times.

Shake Bottle 1 four times, pour all of the liquid into the test device and allow it to absorb. Repeat the process with Bottle 2, followed by Bottle 3, waiting for each solution to absorb before adding the next.

Read the result immediately after completing the test. The control dot must appear for the result to be valid. Do not interpret the result more than 1 hour after completing the test.

If two dots appear, including a faint test dot or ring, the result is considered reactive and must be confirmed by a healthcare professional with a laboratory test. If the control dot does not appear, the test is invalid and another test is required.

Deliveries & Returns

Delivery

All orders are processed within 2 business days.
Free standard delivery on orders over £40.
Orders to Ireland are shipped via UPS and typically arrive within 3–5 working days.
Please note: While we make the necessary updates to comply with new EU packaging regulations, some products are temporarily unavailable for delivery to the Republic of Ireland. Tempdrop products are unaffected and can still be delivered as normal. We apologise for any inconvenience caused.

Returns

Tempdrop is classified as a medical device and cannot be returned or exchanged once opened. Please check sizing carefully before placing your order. This does not affect your statutory rights if the product is faulty.
Unopened items can be returned within 30 days of delivery with valid proof of purchase.
To initiate a return, email talktous@femmehealth.co.uk with your order number and reason for return.

View the shipping policy here.

View the returns policy here.

Please note: For orders shipped to Ireland, femme will pay any customs charges.

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Test Highlights

60 sec Rapid Result

Provides a result in around one minute, with no laboratory wait required.

>99% Accuracy

Designed as a highly accurate at-home HIV screening test when used according to the supplied instructions.

HIV-1 + HIV-2 Antibody Detection

Uses a finger-prick blood sample to detect antibodies to both HIV-1 and HIV-2.

What does the INSTI HIV Self Test detect?

The test detects IgM and IgG antibodies to HIV-1 and HIV-2 in a finger-prick whole blood sample. It is an antibody test rather than a fourth-generation antigen/antibody laboratory test.

How quickly will I get my result?

The INSTI® flow-through system produces a result in approximately 60 seconds once the testing procedure has been completed.

How accurate is the INSTI HIV Self Test?

Manufacturer testing with untrained users reported 100% relative sensitivity and 99.8% relative specificity in one performance evaluation. No diagnostic test is perfect, and accuracy depends on following the instructions correctly and testing outside the window period.

How soon after possible HIV exposure can I use the test?

INSTI can begin detecting HIV antibodies during the weeks following infection, but a recent infection may still produce a negative result. UK guidance uses a 90-day window period for rapid and self-tests, so if your possible exposure was within the last 3 months, you may need to test again once 90 days have passed.

What should I do if the result is positive?

A reactive self-test is not a confirmed HIV diagnosis. Contact your GP or a sexual health clinic as soon as possible and tell them you have received a reactive HIV self-test result. A laboratory blood test is required to confirm the result.

What does a negative result mean?

A negative result means that the test did not detect HIV antibodies in your sample. However, a negative result does not rule out a recent infection if you are still within the window period. Repeat testing may therefore be necessary after a recent exposure.

What should I do if I may have been exposed within the last 72 hours?

Seek medical advice as soon as possible rather than waiting to self-test. HIV post-exposure prophylaxis (PEP) may reduce the risk of infection but needs to be started within 72 hours, and the sooner it is started the better. PEP is available through sexual health services and A&E.

Who should not use the INSTI HIV Self Test?

According to the manufacturer's instructions, the test is not suitable for anyone under 18, people with a bleeding disorder, people taking antiretroviral treatment (ART), or anyone who has participated in an HIV vaccine study. It may also be unsuitable for testing a possible infection acquired within the previous 3 months.

What does an invalid result mean?

The test includes a built-in control dot. If this dot does not appear, the test has not worked correctly and no conclusion can be drawn from the result. Use a new test and repeat the procedure. Seek medical advice if you repeatedly receive invalid results.