You get an instant digital download — a professionally designed PDF guide delivered straight to your inbox. No physical product is shipped. Once you complete your purchase, you’ll receive an email with your download link within minutes.

All guides are delivered as PDF files. PDFs can be opened on any device — phone, tablet, laptop, or desktop — using any standard PDF reader. No special software or subscription is required. We recommend Adobe Acrobat Reader (free) for the best reading experience, though most devices can open PDFs natively.

After payment is confirmed, you will receive an email at the address you provided at checkout. That email contains your personal download link. Click the link to download your PDF. If you don’t see the email within a few minutes, please check your spam or junk folder.

If you still can’t find it, contact us at support@serums.fit and we’ll sort it out right away.

All products are delivered digitally. After purchase, you’ll get instant access via download and/or email.

Yes. Our guides are designed to be readable on any screen size. For the best experience on mobile, we recommend opening the PDF in a dedicated reader app such as Adobe Acrobat (iOS/Android), which allows you to zoom, highlight, and bookmark pages.

Yes. All payments are processed by Stripe and/or PayPal — two of the world’s most trusted payment processors. SerumsFit never sees or stores your card details. All transactions are encrypted and PCI-DSS compliant.

Prices are displayed in USD. If you are paying from the EU or another region, your bank or payment provider will automatically convert the amount at the current exchange rate. Any conversion fees are determined by your bank and are outside our control.

Each purchase is licensed for personal use only. Sharing, redistributing, or reselling the guide is not permitted under our Terms & Conditions. If someone you know would like a copy, they are welcome to purchase their own at serums.fit — it makes a great gift too.

If you are not satisfied with your purchase, contact us within 14 days at support@serums.fit and we will do our best to make it right. Full details are available in our Refund & Returns Policy.

Absolutely. We serve customers worldwide, including throughout the United States. Your purchase will be processed in USD and delivered instantly by email, just like any other order. All our policies are written to cover both EU and US customers fairly.

We’d love to hear from you. Email us at support@serums.fit and we aim to respond within 1–2 business days.