Terms & Conditions

Astra Castra Ltd (company number 17077201), trading as PARTICULAR (“PARTICULAR”, “we”, “us”), operates the website particular.health and sells personalised food supplement blends to consumers in the United Kingdom.

Registered address: 128 City Road, London EC1V 2NX.
Contact us at hello@particular.health.

By placing an order you confirm that you are at least 18 years old and are fully able and competent to enter into these Terms. Our Services are not intended for users under the age of 18.

PARTICULAR products are food supplements only. They are not medicines and are not intended to diagnose, treat, cure or prevent any disease or medical condition. They are not a substitute for a varied, balanced diet and a healthy lifestyle, or for medical advice from a qualified healthcare professional.

Our Services will recommend a personalised supplement formula based on your questionnaire responses, as well as dietary and lifestyle guidance. If you have a recurring or previously diagnosed health condition that concerns you, or are taking prescription medication, you agree to seek medical advice from your GP or other qualified healthcare professional before taking our products and/or making dietary and lifestyle changes.

Your formula is generated by a proprietary algorithm based on your questionnaire responses. While we take every care to ensure accuracy and safety, you should review your formula and ingredient doses before purchasing. All formulas are produced within UK Expert Group on Vitamins and Minerals (EVM) and SACN safe upper level guidelines. Individual ingredient doses are disclosed at the point of formula generation.

Ingredient availability may vary. If an ingredient in your formula is temporarily unavailable, we will notify you and offer an alternative or adjustment.

If you experience an adverse reaction, stop taking the product immediately, seek medical advice, and notify us at safety@particular.health so we can investigate and improve our products.

By using our Services and purchasing our products, you represent and agree that:

• You are responsible for consulting your GP or healthcare professional about any health concerns before taking our products.
• If you are receiving treatment from a healthcare professional, or are taking prescription medication, you will inform them about any nutritional supplements recommended by PARTICULAR, due to the possibility of interactions.
• It is important that you disclose to us any medical diagnoses, medications, herbal medicines or food supplements you are taking, as these may affect our recommended formula.
• You understand that the formula and advice is personalised to you and may not be appropriate for others.
• You will not share, resell or redistribute your personalised supplement to any other person.
• The information you provide in your questionnaire is accurate and complete to the best of your knowledge.

When you submit an order, you make an offer to purchase. A contract is formed when we send you an order confirmation email. We reserve the right to decline orders at our discretion (e.g. if a product is unavailable or if we suspect misuse).

Prices are shown in GBP inclusive of any applicable VAT. Food supplements are currently zero-rated for VAT purposes in the UK. One-time orders are subject to a delivery charge (currently £3.95); monthly subscriptions include free UK delivery.

Prices of products and services are liable to change at any time, but changes will not affect orders for which we have already sent you an order confirmation.

Monthly subscription plans renew automatically each calendar month using the payment method provided at checkout. You authorise PARTICULAR to charge your card on each renewal date.

You may cancel your subscription at any time before the next renewal date from your account at particular.health/account, or by emailing hello@particular.health. Cancellation takes effect at the end of the current billing period; no partial refunds are issued for remaining days in a paid period.

You may update your formula at any time during your subscription. Updated formulas will apply from your next renewal and the subscription price may be adjusted to reflect your new formula.

We reserve the right to change subscription prices with 30 days’ notice sent to your registered email address.

You are responsible for keeping your billing information current, complete and accurate. If we are unable to charge your payment method, we will notify you by email and may suspend your subscription until payment is resolved.

As part of our Services, you will receive transactional emails (order confirmations, renewal notifications, dispatch updates, payment alerts) which are essential to delivering your order and cannot be opted out of.

You may also receive lifecycle emails (onboarding guidance, formula reviews, reorder reminders) from which you can unsubscribe at any time via the one-click link in each email.

Marketing communications are only sent with your explicit consent and you can withdraw that consent at any time.

You agree that electronic communications from us satisfy any legal requirement that such communications be in writing.

You have 14 days from the date of delivery to cancel your order for a full refund without giving any reason, provided the product is unopened and in its original condition.

As your blend is custom-formulated and manufactured specifically for you upon order, the right to cancel under Regulation 28(1)(b) may not apply once production has begun. We will always confirm the status of your order before processing a return request.

To exercise your right to cancel, contact us at hello@particular.health with your order reference.

We currently deliver to UK addresses only. As your blend is custom-manufactured, orders are typically delivered within 7–10 working days of payment. You will receive a dispatch notification email with tracking information once your order ships.

We are not responsible for delays caused by third-party couriers or events outside our reasonable control.

Risk in goods passes to you upon delivery. Title passes upon full payment.

Promotional codes and vouchers are single-use, non-transferable, and cannot be combined with other offers unless stated otherwise. We reserve the right to withdraw or modify any promotional offer at any time. Promotional codes have no cash value and may be subject to expiry dates and additional conditions specified at the time of issue.

You may be required to create an account to use certain features of our Services. You agree to provide accurate, complete and current information and to update it promptly if it changes.

You are responsible for maintaining the confidentiality of your account credentials and for all activities that occur under your account. Each account is for a single individual only. You agree to notify us immediately of any unauthorised use of your account.

We may suspend or terminate accounts that we reasonably believe are being misused, contain inaccurate information, or that violate these Terms.

If you are accessing PARTICULAR through a clinic partner, additional terms may apply as agreed between you and your clinician. Your clinician is responsible for the clinical advice they provide; PARTICULAR is responsible only for the manufacture and delivery of your personalised supplement.

All materials on our website, including the site’s design, text, graphics, images, software, formulation algorithm, questionnaire design, ingredient database and the selection and arrangement thereof, are our property and are protected by UK and international copyright and other intellectual property laws.

The trademarks, service marks, trade names and logos (collectively “Marks”) displayed on our website are the sole property of Astra Castra Ltd and may not be copied or otherwise used, in whole or in part, without our prior written authorisation.

Your individual personalised formula is generated for your personal use only and may not be commercially reproduced, resold or redistributed.

Our liability in connection with any product or service purchased through our website is limited to the purchase price of that product or service. We are not liable for indirect, consequential or special losses, including loss of profits, business, goodwill or data.

Nothing in these Terms limits liability for death or personal injury caused by our negligence, fraud, or any other liability that cannot be excluded or limited by law. Nothing in these Terms affects your statutory rights as a consumer.

The website and all materials contained herein are provided on an “as is” and “as available” basis. While we take every care to ensure accuracy, we make no warranty that the website will be timely, secure, error-free or uninterrupted.

You agree to indemnify, defend and hold harmless Astra Castra Ltd and its officers, directors, employees and agents from and against all losses, expenses, costs and damages (including reasonable legal fees) resulting from your breach of these Terms, your misuse of our products, or your violation of any applicable law or the rights of a third party.

Neither party shall be liable for any delay or failure to perform obligations under these Terms where such delay or failure results from circumstances beyond reasonable control, including but not limited to natural disasters, pandemics, supply chain disruptions, strikes, government actions, or failure of telecommunications networks. Our performance shall be deemed suspended for the period that such event continues, and we will use reasonable endeavours to find a solution.

When you submit personal information through our website, you consent to the collection, use and disclosure of your information as set out in our Privacy Policy, which forms an integral part of these Terms. It is important that you read and understand both documents before using our Services.

Links to third-party websites or resources on our website are not an endorsement of any information, product or service. We are not responsible for the content or performance of any third-party websites. Use of any third-party website is at your own risk; please review that website’s own privacy policy and terms.

If any provision of these Terms is deemed void, unlawful or otherwise unenforceable for any reason, that provision shall be severed from these Terms and the remainder of these Terms shall remain in full force and effect.

These Terms, together with our Privacy Policy and Cookie Policy, constitute the entire agreement between you and Astra Castra Ltd in relation to your use of our Services. They supersede all prior agreements, representations, warranties and understandings, whether written or oral. Our failure to enforce any right or provision of these Terms shall not constitute a waiver of that right or provision.

These Terms are governed by the laws of England and Wales. Any disputes shall be subject to the exclusive jurisdiction of the courts of England and Wales. Nothing in these Terms affects your statutory rights as a consumer.

For any queries about these Terms, contact us at hello@particular.health.
For adverse reaction reports: safety@particular.health.
Astra Castra Ltd, 128 City Road, London EC1V 2NX.