1. Composition
Botanical and chemical characterisation identifies which compounds are present and how processing affects them. It establishes composition—not a clinical skincare result.
Rooibos science · Formulation intelligence
Rooibos-Powered Skincare
Green Rooibos is scientifically interesting. But an interesting botanical is not the same thing as a proven finished skincare product.
Responsible cosmetic science must follow the evidence from plant chemistry, through laboratory investigation, into formulation—and finally into testing of the complete product.
Botanical chemistry
Not all Rooibos extracts are equivalent
Rooibos is derived from Aspalathus linearis, a plant indigenous to South Africa.
Green and red Rooibos are not chemically identical. During the oxidation process that creates traditional red Rooibos, parts of the plant’s phenolic profile change. Research has shown degradation of aspalathin and nothofagin during this process.
Green Rooibos generally retains higher levels of these distinctive dihydrochalcones. Botanical performance can still vary according to growing conditions, harvest, processing, extraction method and standardisation. “Contains Rooibos” is therefore not, by itself, evidence of performance.
Understanding antioxidant science
What a laboratory result can tell us
Reactive oxygen species—often shortened to ROS—are generated as part of normal cellular activity. Environmental and biological stress can disturb the balance between ROS production and the skin’s antioxidant systems.
Researchers can examine whether an ingredient or formulation changes ROS levels under controlled laboratory conditions. This provides useful evidence of antioxidant activity. It does not automatically prove that a cosmetic prevents pollution damage, prevents ageing or protects skin from sunlight in real life.
An antioxidant result must always be interpreted according to what was tested, the concentration, the model, whether the ingredient or complete formula was used and whether the endpoint was laboratory, instrumental or participant-reported.
The evidence ladder
Different evidence answers different questions
2. Mechanisms
Cell and biochemical studies investigate how compounds may interact with oxidative or inflammatory pathways. They cannot recreate the full complexity of living human skin.
3. Preclinical models
Animal and other experimental models can justify further research but cannot be presented as proof of a cosmetic effect in people.
4. Finished-product human testing
Testing the complete cosmetic on human participants provides the most directly relevant product evidence. Instrumental measurements and participant questionnaires answer different questions and should not be presented as if they were the same.
Formulation science
Why the complete formulation matters
A published paper about an isolated Rooibos compound does not automatically substantiate a claim for every cosmetic containing Rooibos.
The final result is influenced by the extract and extraction method, concentration, stability, interactions with other ingredients, the delivery system, contact time, frequency of use, packaging and real-world tolerance.
Aspalux3® is FIGGI’s proprietary Green-Rooibos-centred formulation framework. It is not the name of a newly discovered molecule. It connects three cosmetic priorities: visible comfort, hydration balance and barrier resilience.
Finished-formula evidence
What FIGGI has tested
Luxe Day Crème
The complete formula was tested in vitro using human fibroblast cell culture following hydrogen-peroxide-induced oxidative stress. A significant reduction in ROS was observed at all tested concentrations except 0.008%.
This demonstrates antioxidant activity in that laboratory model. It is not a human clinical study and does not establish SPF protection or quantify real-world protection against sunlight or pollution.
Luxe Night Crème
In vitro, the complete formula significantly reduced ROS at the tested concentrations of 0.28% and 0.14% in a human fibroblast model following hydrogen-peroxide exposure.
In an independent 21-night human study of 33 participants, instrumental Corneometer® measurements showed a 48% increase in skin hydration. Separately, 97% of participants agreed with the statement, “My skin feels hydrated.” The 48% figure is instrumental; the 97% figure is participant-reported feedback. Individual results can vary.
The Rooibos Face Mask
No numerical finished-product human efficacy result is currently presented for the mask. Ingredient research or results from the crèmes should not be transferred to it as if the mask itself produced the same tested outcomes.
Calm Intelligence
Evidence without exaggeration
Science-led skincare should explain both the strength and the limits of its evidence. For FIGGI®, Calm Intelligence means choosing ingredients for defined cosmetic functions, evaluating them within the complete formulation and communicating results without turning early scientific promise into a medical or clinical claim.
Scientific references
Further reading
- De Beer D, et al. Phenolic composition of Rooibos changes during simulated fermentation. Food Research International. 2019.
- Bramati L, Aquilano F, Pietta P. Quantitative characterisation of flavonoids in unfermented Rooibos. Journal of Agricultural and Food Chemistry. 2003;51(25):7472–7474.
- Lee W, Bae JS. Anti-inflammatory effects of aspalathin and nothofagin in vitro and in vivo. Inflammation. 2015;38(4):1502–1516.
- Pringle NA, et al. Green and fermented Rooibos in dermal wound-healing models. Planta Medica. 2018;84(9–10):645–652.
- Akinfenwa AO, et al. Rooibos chalcone derivatives in UVB-exposed human skin-cell models. Plants. 2021;10(9).
- Rawlings AV, Harding CR. Moisturization and skin barrier function. Dermatologic Therapy. 2004;17(Suppl 1):43–48.
- FIGGI®. Luxe Day Crème test disclosure.
- FIGGI®. Luxe Night Crème laboratory and 21-night study disclosures.
Educational notice: Laboratory and preclinical research does not establish that a cosmetic diagnoses, prevents or treats disease. FIGGI® products are cosmetics and do not replace prescribed treatment or sun protection.