Low iron levels are one of the most common underlying causes of fatigue, dull skin and hair thinning. Iron plays a key role in oxygen transport, meaning deficiencies can lead to poor skin radiance, slower healing, and reduced energy levels — all of which can impact treatment results.

Vitamin D is essential for skin repair, immune function and inflammation control. Low levels are often linked to poor healing, sensitivity, breakouts and inflammatory skin conditions, making it a key marker for overall skin resilience.

The gut-skin connection is well established. Poor bowel health can lead to inflammation, breakouts, sensitivity and conditions such as acne or rosacea. Identifying issues here allows practitioners to support clients with more holistic, long-term solutions.

Thyroid imbalances can have a significant effect on both skin and hair. Common symptoms include dry or rough skin, hair thinning, puffiness and changes in texture. It can also influence metabolism and energy levels, which may affect how the body responds to treatments.

Hormonal and bacterial imbalances in vaginal health can be linked to wider systemic issues. These imbalances may indirectly influence hormone-related skin concerns, such as acne, dryness or sensitivity, particularly in female clients

The kidneys play a vital role in detoxification and fluid balance. When kidney function is compromised, it can lead to fluid retention, puffiness, dull skin and toxin build-up, all of which can affect skin clarity and overall appearance.

Imbalanced cholesterol levels can affect circulation and blood flow, which are essential for delivering oxygen and nutrients to the skin. Poor circulation may contribute to dullness, slower regeneration and reduced skin vitality, impacting overall skin health.