Frequently asked questions

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  • Killa Vanilla is for people who are sick of eating more sugary foods than they would like to. Often when they’re not actually hungry. It’s a commitment for people who want to take back control.

    Killa Vanilla is not for people who know they should change but aren’t motivated. It is not an appetite suppressant or a miracle cure. It is not an aid for extreme or restrictive dieting.

  • Whenever you feel a craving, just unscrew the cap and gently waft it under the tip of your nose. You don’t need to insert it into your nostril. And remember: it takes two minutes for the Cross-Modal Sensory Compensation Effect to kick in and kill your cravings. So smell it on and off over the course of two minutes.

  • Anytime. Anywhere. Killa Vanilla isn’t like a vitamin tablet you take at a set time. Use it whenever cravings strike and as often as you need.

  • No. Killa Vanilla just suppresses your sugar craving. It boosts your willpower and allows you to make better food choices.

  • A full review of the evidence, an explanation of the Cross-Modal Sensory Compensation Effect, and a summary of the trials are all available here.
    The most compelling proof is the supermarket and cafeteria trials. The scent had positive effects on people’s eating and buying behaviours, even when they weren’t consciously aware of it.

  • That’s the Priming Effect and only lasts for around 30 seconds. Retailers are great at using this to get you to buy their produce. But the research shows that exposure for more than two minutes causes the effect to completely reverse. This is the Cross-Modal Sensory Compensation Effect.

  • For hygiene reasons and for maximum effect, each Killa Vanilla lasts for one month. In the Three-Month Killa Pack you get three Killa Vanillas (long enough to break your habit). In the Top-Up you get one.

  • Killa Vanilla is made from natural food-grade ingredients: vanillin, propylene glycol and triacetin.

  • Killa Vanilla contains only natural, food-grade ingredients and is made and shipped from here in the UK. It complies with all relevant EU Directives and FDA Regulations. It's also made in a GFSI-compliant facility and then independently health and safety tested in the UK by a UKAS accredited lab.

  • Absolutely. Killa Vanilla is vegan and cruelty-free. It's made using natural food-grade ingredients and does not use any animal products.

  • Killa Vanilla is made and shipped from here in the UK and complies with all relevant EU Directives and FDA Regulations.

  • Killa Vanilla adheres to strict health and safety regulations and so is made from virgin PET, which is recyclable. As a brand, we’re fully committed to all aspects of sustainability. We’re working with our supply chain to develop more sustainable materials that will meet the required health and safety regulations with less environmental impact.

  • Killa Vanilla is totally unique. But we’ve had the help of high-profile experts: specialist diabetic NHS dieticians, NHS doctors, and an amazing global supply chain. People who care about crushing your sugar cravings as much as we do.

  • Well, that’s really up to you. Remember: sugar isn’t bad; excess sugar is. Use Killa Vanilla in a way that works for you. That might mean helping you skip the odd sweet treat rather than cutting out completely. If that’s OK with you, that’s OK with us.

  • Honestly? Yes, sometimes it will be hard. Sugar is everywhere, and trying to avoid it can be really difficult. Particularly if you have a strong habit. The good news is that it gets easier as you go. And, in three months’ time, your cravings will be crushed.

  • That just means you're human – we all slip up sometimes. It’s really hard to cut down on sugar, so don’t expect perfection. You might lose the sugary battle once in a while. Just make sure you win the war.

  • Nope. The less sugar you eat, the less you’ll crave…and the less you’ll need Killa Vanilla. So, over the three months, you'll use Killa Vanilla less and less until you don’t need it at all. By the end of three months you’ll have broken your sugar habit and have a healthier relationship with the white stuff.

  • All orders are sent with Royal Mail. This means most deliveries will take between 2-5 working days.

  • We’ll send you a shipping confirmation email as soon as your order leaves our fulfilment centre. This is usually a day or two after your order confirmation email. You’ll be able to view your tracking by following the link in the email.

  • If you don’t receive your order within the delivery time frame, please wait one more working day for the status to be updated. If there’s no change to your tracking status and your order hasn’t been delivered, we’ll be happy to help. Contact us at

  • Our fulfilment centres work quickly to ship your order to you. Unfortunately, this means your orders can't always be amended. We can attempt, but can’t guarantee, changes to your order if you ask soon after your order has gone through.

    If you notice the incorrect address right after placing your order, contact us at

  • This is rare, but contact us at and we’ll help you sort it.

  • For now, we only ship within the UK, but we do plan to expand soon. If you sign up to our newsletter, we'll let you know when we do.

  • If you’ve accidentally placed an order without applying your discount code, contact us within 24 hours at and we’ll help you apply the discount.

  • Of course. We have a 15% discount for NHS staff. Please contact us on from your NHS email account and we’ll send you your personalised discount code.

  • If you placed an order by mistake, please contact us at as quickly as you can. We will try our best to cancel the order before it leaves our fulfilment centres.

    If the order does ship, not to worry, you can return it to us for a refund. In order to receive a refund, your package must be unopened with the seal intact and returned within 30 days of purchase. Unfortunately, for health reasons opened packages are not eligible for returns.

  • We offer full refunds for products that are returned unopened or if the product is damaged or defective. To request a refund, please send an email to with your name, order confirmation number and reason for the request, within 30 days of receiving your order.

  • Once we approve your refund, you’ll receive an email. Refunds can take up to 10 business days to appear in your account. If you don’t receive your refund after this period, please check with your bank.

  • Killa Vanilla has not been designed to be a weight loss product, but it can be used to help fat loss if that’s your goal. The key for fat loss is a calorie deficit; eating fewer calories than you burn. As sugary treats are often high in calories, cutting down on them is often the easiest way to reduce your calorie intake.

  • It depends on a number of factors relating to how and why someone may have no sense of smell. Unfortunately, there hasn't really been enough research yet to determine exactly what those key factors are.

    So, although we’ve had some great feedback from people with anosmia where it has worked for them, at the moment we just can't give you a definitive answer.

  • We know from experience that withdrawal symptoms are very real. Unfortunately, Killa Vanilla won’t stop you from getting headaches if you do decide to give up sugar. Thankfully, they will go away with time.

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