The role of the lymphatic system in ageing skin

While factors like genetics and lifestyle (including sun exposure) play significant roles in skin ageing, the role of the lymphatic system in skin ageing is an  overlooked however interesting strategy to improve skin's youthful functional (health) and physical attributes (beauty).

The lymphatic system, a vital part of the immune system, is responsible for draining excess fluid, toxins, and waste products from tissues. In the skin, lymphatic vessels collect waste and transport it to lymph nodes for filtration. The lymphatic vessels work with tiny, reflexive muscular contractions constantly pumping cleansing (toxins and debris) lymph fluid through their channels. Interestingly it explains why injections with the muscle relaxant botulinum toxin can cause oedema. 

The function of the lymphatic system

1. Collecting excess fluid from your tissues and returning it to your bloodstream, thus less puffiness and more sculpted.
2. It filters out waste products and abnormal cells from this fluid, thus reducing damage on healthy skin cells and skin components.
3. Protect against invaders like viruses, bacteria, and fungi, hence reducing inflammation.

If you combine all these functions, it's pretty much protecting against accelerated skin ageing.

As we age the lymphatic function and density is decreasing 1:

• Decrease in initial lymphatic vessel density and lymphatic endothelial cell numbers 1.2
• Decrease in collecting lymphatic vessel density and collecting LEC numbers and alters their phenotype
• Decrease in dendritic cell migration and lymphatic pumping and increased leakiness in lymphatic vessels 
• Decrease LEC VEGFR3 signaling and increased senescence and apoptosis 
• Increased immune cell infiltration and nitrosative stress surrounding lymphatics 
• Decreased chemokine and altered junctional protein expression by LECs 
• Downregulation of lymphatic-specific genes like PROX1 (master gene lymphatic system)
• Downregulation of VEGF-C (mediator of lymphangiogenesis and reduction inflammation)

This in turn will contribute to accelerated skin ageing.

Effects of lymphatic system decline on skin:

1. Fluid accumulation: Reduced lymphatic function results in fluid buildup, causing puffiness, especially around the eyes and cheeks.
2. Toxin buildup: Accumulation of toxins in the skin due to poor lymphatic drainage can contribute to inflammation and skin conditions.
3. Decreased nutrient delivery: Impaired lymphatic circulation hinders the supply of essential nutrients to skin cells.
4. Slower healing: A compromised lymphatic system slows down the skin's ability to repair itself, making it more prone to damage and wrinkles.

To sum it up, the ageing lymphatic system can lead to skin dullness, dryness, decreases regeneration, more wrinkles, unevenness and puffiness especially around the eyes. Therewith rejuvenation and activation of the lymphatic system can lead to overall improvement of skin health and beauty.

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Rejuvenating the lymphatic system for youthful sculpted skin:

1. Healthy Diet: Consume a diet rich in fruits, vegetables, and antioxidants supports lymphatic function and reduce inflammation.
2. Hydration: Stay adequately hydrated helps maintain the fluid balance in the body and supports lymphatic circulation.
3. Exercise: Regular physical activity, especially movements that promote lymph flow like (facial) yoga or rebounding, can improve lymphatic drainage.
4. Massage: Gentle lymphatic drainage massage, Gua Sha or pressure, tapping techniques can stimulate lymphatic vessels, improving fluid circulation and detoxification.
5. Skin Care: As photo (sun) damage is a primary cause of accelerated skin ageing (80% up to 90%) including lymphatic vessels(2), start with prevention by using sunscreen on a daily base. Moreover, some active ingredients incorporated in skincare, like Mulberry White Bark extract, fermented Ginseng and others (3.4) have proven to rejuvenate or reactivate the skin's lymphatic system.

Wrongful injected fillers in the tear trough or malar (eye socket - cheek area) septum can lead to worsening of malar oedema (fluid retention) or malar bags. Always consult a qualified healthcare professional or dermatologist to determine the most suitable approach for your particular skin condition and rejuvenation goals. 

Take care!
​Anne-Marie

References:
1. Structural and Functional Changes in Aged Skin Lymphatic Vessels R. Kataru et al. Front. Aging, 2022 
2. Reduction of lymphatic vessels in photodamaged human skin Kentaro Kajiya, Rainer Kunstfeld, Michael Detmar, Jin Ho Chung J Dermatol Sci. 2007 
3. Patent Cosmetic preparations comprising natural activators
4. Patent Cosmetic preparations comprising daphne extracts

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