A close up of a woman's face as a cosmetologist applies a face mask with a brush. Hyperpigmentation: Causes and Proven Treatments for Radiant Skin

Hyperpigmentation Explained: Causes and Proven Treatments

Hyperpigmentation is when patches of skin become darker than the surrounding areas. It affects people of all ages, genders, and skin types.

Hyperpigmentation is a common skin condition that occurs when patches of skin become darker than the surrounding areas. It can affect people of all ages, genders, and skin types. It is usually harmless but can be cosmetically concerning for some individuals. Here we take a closer look at what hyperpigmentation is, what causes it, and what treatment options are available.

What is Hyperpigmentation?

Hyperpigmentation occurs when there is an overproduction of melanin, the pigment that gives skin its colour. It can appear in different forms, including age spots, sunspots, melasma, and post-inflammatory hyperpigmentation. 

  • Melasma. Melasma is a common type of hyperpigmentation that primarily affects women. This is especially true during pregnancy or while taking oral contraceptives. Characterised by the appearance of grey-brown patches on the face, cheeks, forehead, and upper lip. Melasma occurs when melanocytes, the cells that produce melanin, become overactive and produce too much pigment in the skin. Hormonal changes, sun exposure, and genetics can all contribute to the development of melasma.
  • Post-inflammatory hyperpigmentation. Post-inflammatory hyperpigmentation (PIH) is a type of hyperpigmentation that occurs after an inflammatory skin condition, such as acne, eczema, or a rash. Characterised by the appearance of dark patches or spots on the affected area. PIH occurs when the skin produces excess melanin in response to inflammation or injury. Prevent it by avoiding picking at inflamed areas and by using sunscreen to protect the affected area from UV rays.
  • Sunspots. Sun spots, also known as solar lentigines or age spots, is a type of hyperpigmentation that occurs from sun damage. Characterised by the appearance of small, dark patches or spots on the face, hands, and other areas that are exposed to the sun. Sunspots occur when UV radiation from the sun triggers the production of melanin in the skin. Sunspots can be prevented by wearing sunscreen and protective clothing when spending time outdoors. Avoid tanning beds and other sources of UV radiation.

What Causes Hyperpigmentation?

Several factors can contribute to hyperpigmentation, including:

  • Sun Exposure. Exposure to the sun’s harmful UV rays can stimulate the production of melanin, leading to the formation of sunspots.
  • Hormonal Changes. Fluctuations in hormone levels, particularly during pregnancy or menopause, can trigger melasma. Melasma is a type of hyperpigmentation that appears as dark patches on the face.
  • Skin Inflammation. Inflammation caused by acne, eczema, or other skin conditions can lead to post-inflammatory hyperpigmentation. This appears as dark spots on the skin after the inflammation has subsided.
  • Medications: Certain medications, such as birth control pills or chemotherapy drugs, can increase the risk of developing hyperpigmentation.

Treatments for Hyperpigmentation

Topical Treatments

  • Hydroquinone. This is a powerful skin-lightening agent that works by inhibiting the activity of the enzyme responsible for producing melanin. It is available in over-the-counter formulations as well as prescription strengths. However, long-term use of high concentrations of hydroquinone can cause skin irritation and even darkening of the skin. It’s important to use it under the guidance of a dermatologist.
  • Retinoids. These are derivatives of vitamin A and work by increasing cell turnover and exfoliating the skin. This helps to remove the top layer of hyperpigmented skin and reveal a brighter, more even complexion. Retinoids are available in prescription-strength formulations as well as over-the-counter options.
  • Azelaic acid. This is a naturally occurring acid that is effective in reducing hyperpigmentation. It works by inhibiting the activity of the enzyme responsible for producing melanin and reducing inflammation in the skin. It is available in prescription-strength formulations as well as over-the-counter options.
  • Vitamin C. This powerful antioxidant is effective in reducing hyperpigmentation and brightening the skin. It works by inhibiting the production of melanin and promoting collagen production. Vitamin C is available in over-the-counter formulations and can be found in serums, creams, and masks.
  • Kojic acid. This is a natural skin lightener that works by inhibiting the activity of the enzyme responsible for producing melanin. It is available in over-the-counter formulations and can be found in serums, creams, and masks.

When using any topical treatments, it’s important to use them consistently and according to the instructions on the label or as directed by your dermatologist. It’s also important to wear sunscreen every day, as these treatments can make your skin more sensitive to the sun. Always be patient with these treatments, as they can take several weeks or months to show results. If you experience skin irritation or adverse reactions, stop using the product and consult your dermatologist.

Chemical Peels

Chemical peels are a popular treatment for hyperpigmentation. They involve applying a chemical solution to the skin that causes the outer layer of the skin to peel off, revealing newer, brighter, and more evenly toned skin.

There are three types of chemical peels: superficial, medium, and deep. Superficial peels use mild acids like alpha-hydroxy acid (AHA) or beta-hydroxy acid (BHA) to gently exfoliate the outer layer of the skin. Medium peels use stronger acids like glycolic acid or trichloroacetic acid (TCA) to penetrate deeper into the skin. Deep peels use phenol, the strongest type of acid, to penetrate the deepest layers of the skin.

Superficial and medium peels are usually performed in a dermatologist’s office or medical spa and require little to no downtime. Deep peels are typically only performed by dermatologists and require a longer recovery time.

Chemical peels can help to reduce hyperpigmentation by removing the outer layer of the skin where the excess pigmentation is located. They can also stimulate the growth of new skin cells, which can be more evenly toned.

However, chemical peels do have some risks, including scarring, infection, and changes in skin colour. It is important to choose a reputable practitioner and follow all aftercare instructions carefully.

Chemical peels are not recommended for people with very dark skin tones, as they can cause uneven skin colouration or further hyperpigmentation. People with a history of cold sores or herpes simplex virus may also not be good candidates for chemical peels, as the treatment can trigger an outbreak.


Microdermabrasion is a non-invasive cosmetic procedure that uses a special device to gently remove the outermost layer of dead skin cells. The device used in microdermabrasion typically sprays tiny crystals onto the skin surface and then uses a vacuum-like suction to remove them along with the dead skin cells. This exfoliation process stimulates the production of new skin cells and collagen, resulting in a brighter, smoother, and more even complexion.

Microdermabrasion is a popular treatment option for hyperpigmentation because it is gentle, relatively painless, and does not require any downtime. The procedure can be performed on any part of the body, but it is most commonly used on the face, neck, chest, and hands.

During a microdermabrasion treatment, a trained skincare professional will first cleanse the skin thoroughly and then use the microdermabrasion device to gently exfoliate the skin. The procedure can take anywhere from 30 to 60 minutes, depending on the size of the treatment area.

After a microdermabrasion treatment, the skin may feel slightly sensitive or appear slightly red or swollen. However, these side effects usually subside within a few hours. It is important to avoid direct sun exposure and wear sunscreen for a few days after the procedure to protect the newly exposed skin.

Most people will need a series of microdermabrasion treatments to achieve significant improvement in hyperpigmentation. The number of treatments required will depend on the severity of the hyperpigmentation and the individual’s skin type and condition. It is important to work with a qualified skincare professional to determine the best treatment plan for your specific needs.

Overall, microdermabrasion can be an effective and safe treatment option for those looking to improve hyperpigmentation and achieve a smoother, more even skin tone.

Laser Therapy

Laser therapy is a non-invasive treatment that uses targeted beams of light to break up melanin clusters in the skin and reduce hyperpigmentation. There are different types of laser treatments available, such as intense pulsed light (IPL) and fractional laser, which work in different ways to improve skin tone and texture.

IPL therapy uses broad-spectrum light to target pigmented areas on the skin and is often used to treat freckles, sun spots, and other forms of hyperpigmentation. The light penetrates the skin and is absorbed by the melanin, causing it to break down and be absorbed by the body. IPL can also stimulate collagen production in the skin, which can help improve skin texture and reduce fine lines and wrinkles.

Fractional laser therapy, on the other hand, uses a laser beam that is divided into thousands of microscopic treatment zones. This creates a grid-like pattern of tiny wounds in the skin, which stimulate the body’s natural healing process and encourage the growth of new, healthy skin cells. Fractional laser is effective for treating more severe forms of hyperpigmentation, such as melasma and post-inflammatory hyperpigmentation.

Laser therapy is typically performed in a dermatologist’s office and can take anywhere from 15 minutes to an hour, depending on the size and location of the treatment area. The number of sessions needed will depend on the severity of the hyperpigmentation and the type of laser treatment used.

It’s important to note that laser therapy may not be suitable for all skin types, and can cause temporary redness, swelling, and peeling of the skin after treatment. It’s also important to avoid direct sun exposure and wear broad-spectrum sunscreen to protect the skin from further damage.

Sun Protection

Sun protection is a crucial aspect of managing hyperpigmentation, as exposure to UV radiation can worsen existing pigmentation and trigger the formation of new spots. Here are some tips for protecting your skin from the sun:

  • Wear sunscreen: Applying a broad-spectrum sunscreen with at least SPF 30 can provide effective protection against UVA and UVB rays. Be sure to apply it generously to all exposed skin, and reapply every 2 hours or after swimming or sweating.
  • Seek shade: Whenever possible, try to stay in the shade during peak sun hours (typically between 10 a.m. and 4 p.m.).
  • Wear protective clothing: Long-sleeved shirts, trousers, and wide-brimmed hats can help shield your skin from the sun’s rays. Look for clothing labelled with a UPF (Ultraviolet Protection Factor) of 50+.
  • Avoid tanning beds: Tanning beds emit UV radiation, which can cause skin damage and increase the risk of skin cancer. If you want a sun-kissed glow, consider using a self-tanner instead.
  • Be mindful of reflective surfaces: Water, snow, and sand can all reflect UV radiation and increase your risk of sun damage. If you’re near these surfaces, take extra precautions to protect your skin.


Hyperpigmentation is a common skin condition that can be caused by several factors. Fortunately, there are treatment options available to help reduce the appearance of hyperpigmentation, including topical treatments, chemical peels, laser therapy, microdermabrasion, and sun protection. If you are concerned about hyperpigmentation, talk to a dermatologist or skincare professional to determine the best treatment plan for your skin type and concerns.

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