Dermopharmacy: Choose the Ideal Sunscreen by Phototype

In the pharmacy, advice on sun protection goes beyond choosing a high SPF. As healthcare professionals, our job is to guide each patient towards the most suitable product according to their phototype, ensuring optimal and personalised protection against UV radiation.

Understanding Skin Phototypes: The Basis of Advice

Skin phototype is the skin's capacity to assimilate solar radiation, genetically determined by the quantity and type of melanin. It is classified into six types, from I (very fair skin, always burns, never tans) to VI (very dark skin, never burns, tans intensely). Knowing our patient's phototype is the first step towards an effective recommendation.

Key questions such as 'Do you burn easily?', 'Do you tan easily?' or 'What is your natural hair and eye colour?' will help us identify the phototype. This information is crucial for determining the SPF level, product texture, and frequency of application. You can delve deeper into skin care and other aspects in our dermopharmacy section.

Key Factors in Sunscreen Selection

In addition to phototype, other factors influence sunscreen choice. The patient's age (children, adults, elderly), the presence of skin conditions (acne, rosacea, atopic dermatitis), the use of photosensitising medicines, or the activity they will perform in the sun (sport, beach, mountains) are determining factors. A sunscreen for a baby is not the same as for an athlete who sweats profusely.

It is essential to remember the importance of broad-spectrum protection (UVA and UVB) and water resistance if necessary. Texture also plays an important role in adherence: gels for oily skin, creams for dry skin, sprays for hairy areas or children. For a broader view on drug safety, consult our pharmacy vademecum.

Specific Recommendations by Phototype

For phototypes I and II (very fair skin, redheads, blondes, light eyes), an SPF 50+ is always recommended, with very frequent re-application, even on cloudy days. These are the most vulnerable to sunburn and sun damage. In these cases, it is vital to insist on complementary measures such as protective clothing and avoiding the central hours of the day.

Phototypes III and IV (fair to olive skin, brown hair, light or dark eyes) can tolerate an SPF 30 or 50, depending on the intensity of exposure. They tan easily but can also burn. For them, consistency in application and the correct quantity are key. For any doubts about drug safety in special situations, consult our pregnancy and lactation in pharmacy guide.

Finally, phototypes V and VI (dark to very dark skin), although they have greater natural protection, are not exempt from risk. An SPF 15-30 is recommended to prevent photoageing and hyperpigmentation. It is a common mistake to think they do not need protection. Education on this point is fundamental. Pharmaceutical care is key to demystifying these beliefs.

Additional Advice and Patient Education

Beyond the product, our role as pharmacists is to educate on healthy sun habits. This includes generous application (approximately 2 mg/cm², which equates to about 30 ml for an adult's entire body), re-application every two hours or after each swim/intense sweating, and the importance of seeking shade and wearing sunglasses and hats.

We must also remember that no sunscreen offers 100% protection and that prolonged, unprotected exposure is always harmful. Pharmacovigilance of cosmetic products is also important; any adverse reaction should be reported. To stay up-to-date with the latest news and alerts, visit our Spanish Medicines Agency (AEMPS) alerts section. Please check with your own national regulator for local guidance.