The following terms apply to all promotional codes, unless otherwise stated.

To redeem the promotional code, code must be applied at checkout. We are not able to retro apply codes once an order has been placed/processed. Code is valid for one time use per one customer. No rain checks are available for items out of stock. Offer cannot be used in conjunction with any other promotion. Promotion cannot be applied to previous orders.

Please visit our Terms and Conditions page or contact us at info@biologyskin.com for further information.

As we have redesigned our website, you will be required to create a new account.

We still have access to your previous account details on our backend.

Any orders placed on our newly designed website will be stored under your new account information going forward. If you have any questions, please contact us at info@biologyskin.com

Biology ships from Australia to most countries worldwide. Due to regulation updates, we are unfortunately no longer able to ship to the European Union (including the United Kingdom), Russia, Turkey, and North Korea. For more information, please visit our Shipping Page.

Upon completing your purchase, a confirmation email and invoice will be forwarded to the email address provided at time of ordering. Be sure to check your junk/spam folder. For further information, please contact us at info@biologyskin.com.

We aim to dispatch orders within 1-3 business days, however delays may be experienced during peak promotional times. Please visit Australia Post for a delivery ETA here or contact our Customer Experience team at info@biologyskin.com.

For any more shipping information, please visit our shipping page or email us at info@biologyskin.com.

From Tuesday 26 August 2025, Australia Post is temporarily suspending international parcel services to the US due to the recently introduced changes. Unfortunately, at this time, we don't know when shipping will assume. All affected orders will be cancelled/refunded and our customer service team will reach out via email.

If you are not completely satisfied with your order or have made an incorrect purchase, that’s okay – you have up to 14 days from the date of purchase to return your product, subject to the below.

Only items purchased on the Biology Smart Skincare website can be returned to biologyskin.com for refund or exchange. If you haven’t used the product, we’ll exchange it, or refund you in full using the same method of payment as your initial purchase. The returned item must be unopened and in its original saleable condition. You are responsible for the shipping and additional postage charges.

We can’t exchange or refund gift vouchers or promotional items. If you have received an incorrect order please contact us at info@biologyskin.com as soon as you can with your order number and details of the incorrect or damaged product.

Payment over the internet can be made via our secure checkout pages using Visa, Mastercard, Amex, PayPal and AfterPay. For more information, please go direct to payment providers website or email info@biologyskin.com

All prices are quoted in AUD ($) and include Goods and Services Tax (GST).

All orders and applicable shipping costs are in Australian Dollars (AUD).

• If you have an existing account, please anticipate a system-generated email in your mailbox, you will be able to reactivate your account by following the direction in the email.
• ​If you don’t have an account, create an account here and we will guide you with the set up.

• Our improved navigation helps you effortlessly browse through our collections.
• Samples will now be automatically
  added to your cart with all orders, so you can try new products with ease!

If you're already subscribed, your subscription has carried over.

Your privacy is a top priority for us. All personal information is stored securely and used solely for providing our services.

We're here to help, please email us at info@biologyskin.com.

Contact us if you have any questions regarding on your account!