Protecting your skin from the sun is non-negotiable these days: ultraviolet radiation is there all year round and its effects accumulate over time. Between burns, premature aging and risk of skin cancerWe are increasingly aware that leaving the house without sunscreen is like going out without a seatbelt. The problem is that there’s been a huge amount of noise surrounding sunscreens: that chemical filters are toxic, that mineral ones are better but leave a white cast, that sunscreens are worse than the sun itself… and, in the end, many people don’t know what to use.
Amid this mess, science is beginning to look towards plant-based ingredients that can improve traditional protection. Rooibos extract (Aspalathus linearis)A South African plant used to make a popular infusion is emerging as a candidate for a new generation of sunscreens: more stable, gentler on the skin, and with added benefits such as strengthening the skin’s immune defenses and soothing irritations. Furthermore, its infusion is a healthy beverage with a host of additional properties.
Why sun protection is essential (and not just to avoid getting sunburned)
Beyond the typical redness after a day at the beach, solar radiation has a profound impact on the skin. UV rays can directly damage the DNA of cellsThey promote mutations and, over time, increase the risk of skin cancer. But they don’t stop there: they also break down collagen and elastin fibers, accelerate the appearance of wrinkles, blemishes, and sagging skin, and weaken the skin’s immune system.
The skin’s immune system is key to detecting and repairing damaged cells in time. When it is suppressed by UV radiation, It increases the likelihood that this cellular damage will accumulate.That’s why modern sunscreens are no longer designed solely to block light, but to protect the skin’s biology: formulas are sought that maintain the skin barrier, reduce inflammation, and help the body’s defenses function properly.
Furthermore, uncontrolled sun exposure does not only affect the skin aesthetically or superficially. The sun can alter the microenvironment of tissuesIt can promote the development of precancerous lesions and worsen pre-existing dermatological conditions (such as psoriasis, rosacea, or dermatitis). That’s why the denialist discourse that demonizes sunscreens makes so little sense: what is clear is that not protecting yourself is dangerous.
Chemical filters and mineral filters: how they differ and what they have in common
In the market we find two main families of UV filters in classic sunscreens: chemical (or organic) and mineral (or physical). For years its operation has been explained in a very simplified wayas if some absorbed the radiation and others reflected it like a mirror, but recent studies significantly qualify that idea.
Called chemical filters These are organic molecules such as oxybenzone, octyl methoxycinnamate (OMC), and butyl methoxydibenzoylmethane (BMDBM). They integrate into the skin’s surface layer and absorb UV energy, transforming it primarily into heat that dissipates. They are often preferred in cosmetics because they offer lightweight, transparent, and easily spreadable textures that are almost imperceptible once applied.
On the other hand, there are mineral filtersThese sunscreens use zinc oxide and/or titanium dioxide. These particles remain on the skin’s surface, forming a protective film. They also absorb a significant portion of UV radiation and, to a lesser extent, reflect and scatter it. Traditionally, they have been criticized for being thick, leaving a whitish residue, and being less pleasant to use, although more modern formulations have improved in this regard.
Current science indicates that, in practice, Both chemical and mineral filters work primarily by absorbing UV radiationThe difference lies in their nature, how they interact with the skin, and their potential side effects. And this is where ingredients like rooibos come into play, capable of boosting the effectiveness of these formulas without needing to overload the product with more chemicals.
Rooibos: the South African plant that’s making its way into sun protection
Rooibos comes from the plant Aspalathus linearis, a shrub native to South Africaespecially from the Cederberg mountain region. In Afrikaans, its name means «red bush,» due to the reddish hue the leaves acquire when they oxidize in the sun during drying. From these leaves is obtained the infusion known worldwide as «rooibos tea,» although it is not actually a tea because it does not come from the Camellia sinensis plant and contains neither theine nor caffeine.
Since the 17th century, various South African peoples have used rooibos for medicinal purposes, especially as digestive, soothing and anti-allergic remedyToday, its consumption has expanded to more than 140 countries, both in its classic infusion form and incorporated into blends with fruits, spices, or cocoa. Its success is explained by its sweet and earthy flavor, its good tolerability, and a very interesting nutritional composition.
Rooibos is rich in polyphenols and flavonoids (such as aspalathin and nothofagin), as well as minerals such as magnesium, calcium, iron and fluoride, and vitamin C. This combination gives it a powerful antioxidant, anti-inflammatory and remineralizing effectSimply put: it helps neutralize free radicals, takes care of bones and teeth, supports the immune system, and is suitable for people who cannot or do not want to consume caffeine.
The new generation of sunscreens with rooibos extract
In a study published in the scientific journal Photochemical & Photobiological Sciences, researchers from the University of Malaga, in collaboration with Cantabria Labs Spain, have analyzed the behavior of Aspalathus linearis extracts used together with standard UV filters. Their approach was to combine rooibos extract with well-known chemical filters, such as the WTO and the WMDBM, to see if global protection could be improved.
Rooibos extract, by itself, acts as a type of biological filter. Its polyphenols and flavonoids absorb some of the solar radiation.But what’s truly remarkable is its role as a booster when added to conventional formulas. In these combinations, an increase in the Sun Protection Factor (SPF) was observed, which in some cases reached up to 50% without needing to increase the doses of synthetic filters.
Another key point is its ability to improve the photostability of chemical filters. Many filters degrade with continuous exposure to the sun, losing effectiveness over time. By incorporating rooibos extract, the degradation of molecules such as OMC or BMDBM is slowed downThis translates into more consistent and longer-lasting protection during exposure.
This type of formulation is considered a kind of «hybrid»: it uses well-studied chemical filters, but stabilizes and complements them thanks to botanical extracts. The potential result is more effective products, safer in the long term, and with a lower environmental impact.because less synthetic filter is required to achieve the same (or greater) protection.
Rooibos and skin immune protection (HIPF)
Beyond the classic SPF, which mainly measures how much longer it takes for the skin to burn, the study highlights the concept of the Immune Protection Factor or HIPF. This indicator assesses the extent to which a product helps maintain the skin’s defenses against UV radiation., something crucial to prevent deep cellular damage.
Rooibos extract provides an extra benefit precisely in this area. Its antioxidant and anti-inflammatory compounds help to reduce oxidative stress on skin immune cellsThis helps them continue to function properly despite sun exposure. This means that not only are superficial burns minimized, but the «surveillance system» that detects damaged cells is also better protected.
In practical terms, including rooibos in the formula can translate into a reduced risk of precancerous lesions and skin cancer In the long term, it mitigates UV radiation-induced immunosuppression. This is a more comprehensive approach to photoprotection, of particular interest to people with a history of skin cancer, very fair skin, or chronic dermatological conditions.
Furthermore, as a plant-based ingredient with a good safety profile, rooibos fits well into the current trend towards more natural and sustainable cosmetic products. It combines science and herbal medicine in a rather elegant way.It does not replace classic filters, but it complements them and makes them work better.
Benefits of rooibos as an infusion for the skin and body
The story of rooibos extends beyond its topical use or as an ingredient in sunscreens. Taken as an infusion, it offers interesting benefits that also impact skin health. Its antioxidant action helps to slow down cellular aging from withincombating free radicals generated by the sun, pollution, tobacco, or stress.
Its zinc content and other minerals make it a good ally for maintaining more hydrated skin, with a better appearance and less tendency to become irritatedIn some cases, it is even used topically, applying a cold infusion to problem areas, as support in cases of acne, psoriasis or mild eczema.
In addition, rooibos is known for its digestive properties. It helps to Relieves indigestion, gas, bloating, and mild crampsespecially when combined with plants like chamomile or mint. This antispasmodic effect comes from its content of certain flavonoids that have a relaxing effect on the smooth muscle of the digestive system.
It is also attributed with a mild general anti-inflammatory action, useful in mild discomfort associated with inflammation or spasms. Its profile makes it very suitable for taking throughout the day, even for people with sensitive stomachs, as it contains no caffeine or theine and is less irritating than other drinks.
Rooibos, allergies and the immune system
One of rooibos’s strengths is its role as a natural antihistamine. Thanks to compounds like quercetin and aspalathin, it can help to modulate histamine releaseIt is implicated in many allergic reactions. This makes it an ally against mild respiratory allergies, asthma in some cases, and allergic skin reactions.
When consumed regularly, it contributes to reduce symptoms such as itching, watering, sneezing, or small rasheswithout the drowsiness typical of some pharmaceutical antihistamines. Of course, it doesn’t replace medical treatment when that’s needed, but it can be a helpful complement to daily use.
Its contribution of vitamin C and polyphenols also strengthens the immune system. It helps improve the body’s response to common infections…such as colds, and helps maintain a better overall inflammatory balance. In the field of ophthalmology, this cardiovascular and immune action also benefits, since good circulation and reduced oxidative stress in the retina are associated with a lower risk of visual problems.
Some studies indicate that controlling cholesterol levels and vascular health reduces the likelihood of small blood clots in the retina that can cause temporary vision loss (amaurosis fugax). By promoting a more balanced cholesterol profileRooibos also fits into that global prevention strategy.
Rooibos benefits for bones, heart, and overall health
Rooibos is one of the most nutritionally complete herbal teas. Its calcium, magnesium, and fluoride content makes it a good supplement for… Maintaining bone and dental healthhelping to prevent demineralization over time. It does not replace a diet rich in these minerals or supplements when needed, but it adds to your daily intake in a gentle way.
In terms of cardiovascular health, it has been observed that it can contribute to improve circulation and regulate cholesterolThanks to antioxidants like chrysoeriol, this helps protect arteries and the heart, and fits well into an overall health strategy that includes a balanced diet and physical activity.
Another interesting aspect is its ability to act as natural isotonic drinkBy rehydrating and providing minerals without caffeine or almost calories, it is a highly recommended option after exercise or on very hot days, especially for people who want to avoid sugary soft drinks or stimulant beverages.
Rooibos also plays a role in mental and emotional well-being. Magnesium and certain antioxidants contribute to… relax the nervous system and improve sleep qualityThat’s why it’s often recommended as a nighttime infusion for people with stress, mild anxiety, or difficulty falling asleep, including children and the elderly.
How to prepare and take rooibos: internal use and topical application
Preparing rooibos tea at home is very simple. The usual method is to heat water until it boils, add a heaped dessert spoon (about 15-20 grams per liter) Use loose-leaf rooibos or one tea bag per cup and let it steep for 7 to 10 minutes. Since it doesn’t contain caffeine, it can be steeped for a little longer without becoming as bitter as some teas.
It can be taken alone or with company. It is very common to add a slice of lemon, a little honey, or spices like cinnamon.which combine wonderfully with its sweet and slightly earthy flavor. There are also commercial blends with forest fruits, orange, ginger, or even cocoa, which add different nuances and additional properties.
Regarding its topical use, cold rooibos infusion can be applied to the skin with gauze or cotton. For insect bites, minor sunburns, irritations, or mild allergic reactionsIts anti-inflammatory and soothing properties can help reduce itching, redness, and swelling. Ideally, prepare a concentrated infusion (for example, two tea bags or two teaspoons of rooibos per cup, steeped for 15-20 minutes), let it cool completely, and then soak a compress in it and apply it to the affected area for 10-15 minutes.
It can also be poured into a clean spray bottle and used as Cooling spray for sunburned areasAgain, we’re talking about soothing support for minor burns; for more severe burns or extensive blisters, it’s best to see a doctor.
Another option is to add a few cups of cold rooibos to the bath water. This “rooibos bath” is especially pleasant on skin with eczema, psoriasis or diffuse itching.because prolonged contact with the infusion soothes and softens the skin surface without drying it out.
Types of rooibos: red and green, and more common blends
Not all rooibos is the same; the main difference lies in the treatment of the leaves after harvesting. Red rooibos is the most traditional versionThe leaves are left to oxidize in the sun, acquiring that characteristic reddish color and a sweet, mild, and slightly woody flavor. This process enhances certain antioxidants and gives it its well-known organoleptic profile.
El green rooibosIn contrast, it dries quickly to prevent oxidation, similar to how green tea dries compared to black tea. This helps preserve sensitive antioxidants, such as aspalathin, which has a particularly pronounced anti-aging effect. Its flavor is more herbal and fresh, somewhat more vegetal, and is usually very popular with those who prefer light infusions.
As for the mixes, the market offers options for all tastes. It’s common to find Pure organic rooibos in leaves, intended for those who want the classic flavor without additions, but also combinations with orange, lemon or red fruits that provide extra vitamin C and a nuance between sweet and sour.
The versions with cinnamon are highly valued for their warm aroma and their digestive and blood sugar regulating properties, while rooibos with ginger It adds a slightly spicy touch and reinforces the anti-inflammatory and digestive profile of the infusion. There are even blends with cocoa, in which the mild stimulating notes of cocoa are balanced by the relaxing effect of rooibos.
Some varieties are offered as «bio» or organic rooibos, guaranteeing that the plant has been grown without synthetic pesticides. This point is relevant for those seeking safer and more sustainable consumption.especially if it is taken daily or will be consumed by children.
Contraindications, precautions and safety of rooibos
Rooibos is considered one of the safest and most well-tolerated herbal teas. It does not contain theine or caffeine.It can be taken at any time, even before bed, and is considered suitable for children, pregnant women, the elderly, and people with hypertension. However, as with any plant containing active ingredients, it’s advisable to be aware of some precautions.
During pregnancy and breastfeeding, although there is no solid evidence of harmful effects from moderate consumption, It is advisable to consult with a gynecologist if large quantities are to be taken. Drink rooibos tea daily or use highly concentrated preparations. Moderation is always a good idea.
Regarding drug interactions, its antioxidants and flavonoids could, in theory, interfere with the absorption or metabolism of certain drugssuch as some anticoagulants, heart medication, or hormone therapies. If you are undergoing significant chronic treatments, it is advisable to discuss the regular consumption of herbal teas with your doctor.
In people with allergies or specific sensitivities, the possibility of reactions cannot be ruled out, although they are infrequent. If symptoms such as hives, difficulty breathing, or swelling appear after drinking rooibosIf this occurs, discontinue use and seek medical attention. The same applies to topical use if a lesion worsens.
In cases of severe liver or kidney disease, any supplement or infusion taken daily should be evaluated by a specialist, since the liver and kidneys are responsible for processing and eliminating many compounds. Common sense dictates: moderation and professional consultation when in doubtIt is also important to choose products from reliable sources, with controls against pesticides, heavy metals, and good water and packaging quality.
Among the most common consumption recommendations is to avoid adding milk (it can significantly change its organoleptic profile), drink it alone or with citrus fruitsEnjoy it hot or cold (by preparing a pitcher and letting it cool in the refrigerator) and even offer it to children as an alternative to sugary soft drinks and juices.
With all of the above, rooibos presents itself as a very versatile infusion and a cosmetic ingredient with a promising future. Its antioxidant, anti-inflammatory and immune response modulating capacityThis, along with its role in new sun protection formulas based on natural extracts, makes it an interesting piece within the comprehensive care of the skin against the sun and the general well-being of the body.