We're very proud that all manufacturing is carried out here at our lab in London. This means that we have complete visibility over our supply chain, can ensure the quality of our ingredients and every step of our manufacturing process, and importantly, can minimise wastage.
Yes. Our products are certified cruelty-free by Leaping Bunny. This means that not only do we never, ever test on animals – but our ingredient suppliers don’t either.
Most of our products are vegan and certified vegan by the Vegan Society. The exception are Sister & Co. Lip Tonics which contain beeswax.
Yes - and the majority of our our products are certified COSMOS ORGANIC. COSMOS is the leading international standard created by the five key European organic certification bodies.
This is a relatively new certification, and a great thing for the personal care sector. As a response to the growing confusion over what ‘natural’, 'organic' and ‘green’ actually mean, COSMOS aims to safeguard the welfare of people and our environment by setting strict and tightly regulated standards which apply to every part of a product's supply chain. To be COSMOS-certified, a product must guarantee “green chemistry” across all ingredients from source to end. This means no animal testing, GM ingredients, controversial chemicals, parabens, phthalates, synthetic colours, dyes or fragrances. Instead, products must be made up of sustainably sourced organic and biodegradable ingredients, use natural colours and fragrances from plants and flowers, have transparent manufacturing processes, need minimal and recyclable packaging and must not pose a threat to wildlife or biodiversity. Certifying with COSMOS is voluntary, but we’re committed to keeping up our certification – because it provides certainty in a world where greenwashing is, well, everywhere.
Yes. We package our products in glass and aluminium, the most easily and commonly recycled materials. But we encourage upcycling – our bottles and jars make sweet vases, oil bottles, hair clip holders, spice jars, & more! As far as we can, we use recyclable dispensers. Currently, plastic pumps are non-recyclable, so we encourage you to place your initial order for a 'with pump' variation, and then re-order with a screw top plastic cap. You can then re-use your pump and recycle your cap.
Unusually for brands in our category we have chosen to box our products in plain outers made from recycled FSC approved brown cardboard. Pretty outer packaging is lovely, but it so often goes straight in the bin, so we see it as a waste of resources. It also means we would need to pass the cost on to you.
We ship our products in fully recyclable materials and our mailing boxes are made from 100% recycled card.
Our products are formulated for all skin types, including sensitive skin. However, it is always a good idea to test any new product on a small patch of skin before using it liberally. If any undesirable effect occurs, stop using immediately & consult a medical professional.
Yes, all Sister & Co. and Tandem products are safe to use when pregnant and while breastfeeding.
There are some essential oils that should be avoided during pregnancy but all our products that contain essential oils contain them at levels compliant with EU Regulation 1223/2009, meaning that qualified safety assessors have deemed finished products entirely safe for use for all consumers - including women who are wishing to become pregnant, pregnant women and breastfeeding women.
If you have any concerns around using essential oils during pregnancy, please consult your midwife or medical professional before using our products.
Yes! We ship to most countries.
EU: Free standard shipping for orders £70 and over | £10 for orders under £70
US: £17 standard shipping
Rest of World: £17 standard shipping.
Please be aware that customs duties may also apply and will be charged to you by your national tax authorities when the products arrive. Note: orders to the US under $800 do not currently incur customs duties.
Please be aware that due to the COVID-19 pandemic international orders may experience delays.
We do everything online, so you can only place orders through our site. If you want to get in touch about anything else, we respond super-quick to emails or Instagram DMs. Just give us a shout on firstname.lastname@example.org or via Instagram DM (@sisterandcoorganics).
Non Faulty Products:
We want you to be happy with every purchase you make with us.
If for any reason you aren't completely satisfied or you change your mind, you may return any product for a full refund or replacement (as appropriate) within 30 days of receipt of your order.
Please return to Sister & Co/Tandem Skincare Returns, 50 Hadyn Park Road, London W12 9AG.
We recommend that you return products via Registered Post. You assume any risk of lost, theft or damaged goods during transit and therefore we advise you insure your parcel. We will not be responsible for parcels lost or damaged in transit. A refund or replacement can only be issued once goods are physically received at Sister & Co. HQ.
If your package is visibly damaged on delivery, please tell the person delivering your goods that you wish to sign as 'received damaged'.
If your goods are received as faulty or damaged once opened please contact us at email@example.com with 48 hours of receiving your order.
Please note that we may require images of any damages for our records.