Apply to claim your FREE ENDOCARE RENEWAL Retinol Serum & Eye Contour

Science-led clinically proven retinol for visible anti-ageing results – without the irritation.

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Developed by Cantabria Labs - global leaders in dermatology and creators of the sunscreen sensation HELIOCARE - ENDOCARE brings together decades of clinical research, patented technologies and gold-standard dermatological actives to deliver skincare that really works to prevent and improve signs of skin ageing.

Retinol: The gold-standard anti-ageing ingredient

Retinol is considered the gold-standard ingredient in anti-ageing skincare, loved for its ability to smooth, brighten, and visibly renew the skin. But if you’ve ever hesitated to try it because of the common side-effects of dryness or irritation, you’re not alone. Many traditional retinols can feel harsh, especially for those with sensitive skin.

Our unique retinol formula combines two retinoids for immediate and sustained release. This advanced delivery system has been clinically proven to deliver exceptional results with excellent tolerability. That means you get all the benefits - refined texture, improved radiance, smoother-looking skin - without the irritation.

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Meet ENDOCARE RENEWAL Retinols

Clinically proven to boost collagen, elastin and fibroblast activity, helping strengthen the skin for visibly firmer, plumper and more youthful-looking results - with excellent tolerability.* 

Our advanced retinol formula contains a powerful retinoid combination system that delivers both immediate and sustained activity, balancing high efficacy with excellent tolerability to provide powerful yet gentle skin renewal. It enhances tone and texture while supporting long-term skin health and is suitable even for the most sensitive skin types. 

Your FREE full-sized trial includes: 

ENDOCARE RENEWAL Retinol Serum

WORTH £53.00

A 0.2% pure retinol treatment, enriched with hyaluronic acid, niacinamide and bisabolol to refine texture, smooth fine lines, and support healthier, more radiant-looking skin with minimal irritation. Its water-free formula and airtight packaging ensures retinol remains stable and effective with every application.

ENDOCARE RENEWAL Retinol Eye Contour

WORTH £40.00

An advanced eye contour emulsion containing 0.05% retinol, enriched with hyaluronic acid and antioxidant ingredients to help hydrate, plump and reduce the appearance of dark circles. Skin is left smoother, brighter and more luminous, with 85% of users reporting a visibly brighter, more rejuvenated eye area.**

Apply to claim your FREE ENDOCARE RENEWAL Retinol Serum & Eye Contour

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How to apply for your free trial

Sorry, applications are now closed for the ENDOCARE RENEWAL Retinol Trial but if you wish to be considered for future trials, you can complete the form below.

You can find out more information about the ENDOCARE RENEWAL Retinol products here: ENDOCARE RENEWAL Retinol Serum & ENDOCARE RENEWAL Eye Contour.

Why trust Cantabria Labs?

  • Dermatologist proven efficacy

    Cantabria Labs skincare ranges are dermatologist-proven to target, prevent, and improve key skin concerns like sun protection, acne-prone skin, ageing, and hyperpigmentation.

  • Expert recommended

    Cantabria Labs products are the top dermatological prescription in Spain, Italy, Portugal, and recommended by skin experts across the globe.

  • Personalised skincare

    With ranges specifically designed to cover every skin type, indication and concern, there’s always a Cantabria Labs product to suit your skin.

T&Cs apply. This free product trial is open to residents of the UK mainland aged 25 years or over.​ To apply, applicants must submit their details via the application form and confirm that they meet the eligibility criteria. ​A maximum of one free trial pack is permitted per household. Any duplicate applications or entries will be automatically cancelled.​ 

Applications close at 5:00pm on Friday 30 January 2026.​ From all eligible applications received, 600 applicants will be selected at random to receive a free trial pack.​ All applicants will be contacted during the week commencing 2 February 2026 to confirm whether they have been successful and to provide details on how to claim their trial pack.​ The free trial pack is non-transferable and no cash or alternative product is available.​ The Promoter reserves the right to withdraw or amend this offer at any time where reasonably necessary.​ 

​Promoter: Exclusive UK distributor Ferndale Pharma, LS23 7FX, UK

Sources: *Truchuelo MT, Jiminez N, Miguel- Gomez L,Hermosa A, Sanchez-Neila N, Cuevas J Dermatology Research & Practice 2015. **Trial conducted in women between 18-65 years, with normal skin type, with a frequency of application of 2 twice a day on the area around the eyes and in-between the nose and lip area.