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U.S. Shipping Update: We are continuing to accept and ship orders to the United States.
The 22 October changes are new U.S. customs requirements, not a blanket FDA ban. Read our full update.

Shipping delays due to Covid-19 Virus

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Retinoids

Our Retinoids class of Hair Loss products are used to modify skin cell behaviour, including growth and differentiation, to promote hair growth and prevent hair loss in male pattern baldness..

Use the search feature to quickly find the product you are looking for, by entering either the active ingredient, e.g. tretinoin or the product name, e.g. Retin A.

Skin cell growth

As skin cells or keratinocytes divide and grow, they move through the epidermis of the skin to the upper layers where they differentiate and undergo a hardening process known as keratinisation and cornification. The hardened cells eventually die and are shed to make way for new skin cells.

Modifying skin cell behaviour

Tretinoin is a retinoid and is an active metabolite of Vitamin A that binds to intracellular receptors in skin cells and modifies the way skin cells behave. Tretinoin stimulates skin cell growth and this includes hair follicles. It also blocks skin cell differentiation and the hardening processes of the outer skin layer. It is thought that tretinoin prolongs the anagen phase of hair growth and in this way promotes hair growth. Therefore, although it does not prevent hair loss directly, tretinoin may be able to slow down the progression of hair follicle miniaturisation and even promote the growth of new hair.

Retinoids in combination hair loss products

Tretinoin is also used in combination with minoxidil and is thought to help reduce hair loss by increasing the absorption of minoxidil through the skin, as well as providing an additive effect with minoxidil to promote hair growth.
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"Hi, I just must stop and say thank you for all you girls have done over, the years. Your service is excellent! Always courteous and professional!"
David Koss PA, USA • July 2025
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Carole UK • January 2025
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"My experience with Inhouse Pharmacy in Vanuatu was smooth and efficient from beginning to end. I found the instructions on the website easy to understand and follow. I was also able to get phone information easily. I would offer one suggestion: that the office hours and time zone be indicated on the website. Furthermore, I was kept abreast of my order status, and the order arrived safe and sound right around the time I was told it would. I would not hesitate to order products from Inhouse again. Thank you."
Taylor NM, USA • June 2026
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"I have ordered with Inhouse for many years. They've always been excellent. Even after emergencies when we needed things in the past, I've never been let down. They've always been lovely to me and I just feel like I'm getting things from friends. So, I love Inhouse! There hasn't been anything bad, so it would be a new one if there ever was. The goods have always been delivered as seen and priced as advertised, and replaced if necessary. So, it's a straight 5-star award."
Gina UK • June 2026
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"Just love this place. Great customer service and always delivery as requested. Been doing business with them for years. Thank you so much Inhouse"
Cheryl Owens TX,USA • August 2025
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"I just received the inhalers and see that they don’t expire until next November, which is excellent! I really wanted to thank you again for all of your help and excellent customer service through this all. I’m sure it was a stressful time for your company as well. We will always continue ordering through your company."
Brooke Loffredo NJ,USA • October 2025
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"Thank you. I received my first shipment last week and I am very happy with the whole ordering experience and results."
Katherine FL, USA • November 2024
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"Great service, never had a problem"
Kimberly NM, USA • August 2025
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"I am so fortunate to have found this company for my medication. I have used other entities, but they fall well below your efficient customer service, ease of ordering through the website and quick receipt of my meds. It is so hassle-free. Thank you for all your assistance with my health needs."
MaryAnn Ulander NV, USA • February 2025
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"Order arrived today... another speedy order to delivery...."
Roger OK, USA • May 2026
 

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