Radiofrequency Microneedling
MedicalTherapyA minimally invasive treatment combining fine needle micro-injury with bipolar radiofrequency energy delivered precisely at needle tips into the dermis.
The Lab
Where beauty meets biology
The Science Library
7 entities found starting with R Clear filters
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Randle cycle
BiologicalProcessThe Randle Cycle describes the reciprocal competition between glucose and fatty acids as cellular fuel sources; when one is being oxidised, it suppresses the other.
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Rapid weight loss
BiologicalProcessRapid weight loss, typically defined as loss exceeding 1–1.5kg per week, or greater than 1% of body weight per week sustained over multiple weeks
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Reactive oxygen and nitrogen species
ChemicalSubstanceA family of chemically reactive molecules comprising reactive oxygen species (ROS) and reactive nitrogen species (RNS) generated continuously in skin tissue.
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Reticular dermis
AnatomicalStructureThe deeper, thicker layer of the dermis, composed of dense Type I collagen bundles, thick elastic fibres, and ground substance.
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Retinoid
ChemicalSubstanceVitamin A derivatives that act via retinoic acid receptors but differ in receptor selectivity, conversion steps, and tolerability, making clinical choice dependent on skin state and treatment goals.
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Rosacea
MedicalConditionA chronic inflammatory condition driven by a self-amplifying KLK5/LL-37 feedback loop, neurovascular sensitisation, and barrier dysfunction — not simply reactive or vascular skin.