Nobody warns you about the dry skin. You go into gastric sleeve surgery prepared for the weight loss, the food changes, the recovery – but somewhere along the way, your skin starts to feel like it belongs to someone else. It’s something both of us have dealt with since surgery, and it’s still an ongoing consideration two years on.
Why it happens
Nutritional changes. After sleeve surgery, your body absorbs fewer nutrients overall, and several of those nutrients are directly responsible for skin health and hydration. Essential fatty acids (omega-3 and omega-6) support the skin’s barrier function. Zinc is involved in skin repair and wound healing. Vitamins A, D, E, and K all play roles in skin cell production, hydration, and protection. When dietary intake drops significantly and absorption changes, skin is often one of the first places the deficit shows.
Rapid fat loss. As fat stores reduce quickly, the skin’s underlying structure changes. Subcutaneous fat contributes to the plumpness and moisture retention of skin – when it reduces, skin can feel drier and more fragile, particularly in areas of significant fat loss.
Dehydration. Post-sleeve hydration is already a challenge, and inadequate fluid intake directly affects skin moisture. Skin is roughly 64% water; when you’re chronically slightly under-hydrated, it shows. The two-litre daily target is as much about skin health as it is about kidneys and digestion.
Hormonal shifts. Significant weight loss affects oestrogen and other hormones that influence skin texture and moisture retention. The hormonal changes that accompany rapid weight loss can produce skin changes that feel disproportionate to what’s happening – dryness, sensitivity, and sometimes increased susceptibility to irritation.
What has actually helped us
A bariatric multivitamin with adequate fat-soluble vitamins. Not all bariatric multivitamins are equal. Ensuring your supplement contains meaningful amounts of vitamins A, D, E, and zinc is important – these don’t get added automatically to every formulation. Check the label. We noticed a difference when we switched to a more comprehensive bariatric-specific formulation.
Omega-3 supplementation. Essential fatty acids support the skin’s lipid barrier, which is what keeps moisture in. Fish oil capsules or an algae-based omega-3 supplement are worth adding if dry skin is persistent. Dietary sources – oily fish, walnuts, flaxseed – are worth prioritising in meals too, but portion sizes post-sleeve make supplementation more reliable.
Hydration. The connection between fluid intake and skin condition is consistent – on days when water intake drops, skin feels noticeably worse. We treat the two-litre target as important for skin health as much as anything else.
Emollient moisturisers rather than standard lotions. Water-based lotions evaporate quickly and don’t help much with the kind of dryness post-bariatric patients experience. Richer emollient creams – the kind used for eczema-prone skin, such as Cetraben or Doublebase – create a physical barrier that locks moisture in more effectively. We use these daily on dry areas rather than standard body lotion.
Avoiding long hot showers. Hot water strips natural oils from the skin faster than warm water. Shorter, warm showers and patting skin dry (rather than rubbing) preserve more of the skin’s natural barrier. This sounds minor but makes a cumulative difference.
When it’s more than dryness
If skin is persistently cracked, inflamed, or developing eczema-like patches, it’s worth speaking to your GP. Dry skin that doesn’t respond to emollients and improved nutrition may indicate a specific deficiency – vitamin A and zinc deficiency both produce characteristic skin changes – and a blood test can identify whether something specific needs addressing. Don’t assume all post-op skin issues are just “normal dryness.”
Skin infections can also develop in skin folds, particularly with loose skin. If you notice redness, heat, or discharge in a skin fold area, see your GP – intertrigo (a fungal or bacterial infection in skin folds) is manageable but needs treatment.
Sources cited in this post: NHS – Dry skin: causes and treatment
BOMSS – Guidelines on perioperative and postoperative biochemical monitoring and micronutrient replacement for bariatric patients
NHS – Vitamins and minerals: Vitamin A
British Skin Foundation – Dry skin and eczema information
- NHS, “Weight loss surgery”: https://www.nhs.uk/conditions/weight-loss-surgery/
- British Obesity & Metabolic Surgery Society (BOMSS): https://bomss.org/
About this content
This blog is written by James and Kirsten, a couple from the UK who had gastric sleeve surgery together in March 2024.
We started this blog because we couldn't find any sources of content that details before surgery, the surgery and then life post surgery - so we decided to write one ourselves.
Everything on this site is based on our own experience and the research we have done along the way. It is not medical advice. Gastric sleeve surgery is a serious procedure and every patient's journey is different. Please always consult your own bariatric team or GP before making any decisions about your health or treatment.
Some posts on this site may contain featured or sponsored content, or affiliate links. Where this is the case, it will always be clearly stated at the top of the article. Our opinions are always our own.
Publish Date: 24 November 2025 | Last Reviewed: 27 June 2026 | Next Planned Review: 27 December 2027