Ready-to-use carnosic acid concentrate (15% active). Use 1–7% (delivers ~0.15–1.05% CA).

ReadySolve Carnosic Acid is a ready-to-use 15% carnosic acid concentrate. Carnosic acid is a lipophilic phenolic diterpene from rosemary (Salvia rosmarinus) with well-characterized antioxidant and cytoprotective behavior in skin-relevant systems. This concentrate streamlines incorporation of the active into topical formulas while helping maintain stability and delivery.

Across skin models, carnosic acid demonstrates multiple performance axes: anti-inflammatory signaling control (notably STAT1 and NF-κB pathways), UV/photoaging moderation via suppression of MMP-1/3/9 and upstream oxidative signaling (ROS → MEK/ERK → AP-1), anti-virulence activity against Staphylococcus aureus through quorum-sensing (agr) interference with anti-biofilm effects, and wound-closure support with reduced post-inflammatory hyperpigmentation when formulated in suitable carriers. Antioxidant cytoprotection via Nrf2-pathway activation underpins these outcomes. Hair/scalp relevance is emerging from preclinical work. Most data are preclinical; efficacy in finished cosmetics depends on stabilization and delivery design.

This ReadySolve format provides standardized, easy-to-dose carnosic acid for creams, lotions, serums, and scalp leave-ons. Where aqueous delivery is required, encapsulation or robust solubilization is recommended. Limit heat/oxygen/light during processing and storage to protect the active.

Product Description: Detailed performance and formulation guidance

- Inflammatory dermatoses models: topical carnosic acid reduced lesion severity in psoriasis/rosacea mouse models alongside attenuation of STAT1-axis readouts, consistent with a calming/anti-redness role.

- UV/photoaging (keratinocytes/fibroblasts): limited UV-induced ROS, reduced downstream MEK/ERK/AP-1 signaling, and suppressed collagenase/gelatinase expression (MMP-1/3/9) — a mechanistic basis for preserving dermal matrix integrity.

- Antimicrobial/anti-virulence (skin relevance): selectively interferes with S. aureus agr quorum sensing, reduces virulence factor signaling and biofilm formation; in vitro synergies with aminoglycosides have been reported (formulation context dependent).

- Wound healing & PIH: lipid/vesicle-based gels delivering carnosic acid accelerated closure and dampened inflammatory markers with improved post-inflammatory hyperpigmentation outcomes; combinations with phenolic antioxidants (e.g., ellagic acid) reported additive/synergistic effects in preclinical settings.

- Antioxidant cytoprotection: acts as a strong radical quencher and engages Nrf2-associated defense programs in skin-relevant cells, supporting resilience under oxidative stress.

- Hair/scalp (emerging): preclinical evidence points to anti-inflammatory and potential anti-androgenic pathways relevant to alopecia concepts; translation to human scalp products requires appropriate delivery.

- Formulation & stability engineering: carnosic acid can oxidize or convert to carnosol; protect with encapsulation (e.g., liposomal/vesicle systems), oxygen/light control, antioxidant co-systems, and minimal heat. Alternative solvent systems (e.g., NADES-type) and lipid carriers can improve retention versus simple alcohols.

- System choices: works well in emulsions (O/W or W/O), anhydrous oils/balms, and surfactant-based leave-ons. For water-rich systems, use solubilizers or encapsulation to avoid crystallization/precipitation and to enhance delivery.

Usage: Serums, creams/lotions, spot treatments, post-procedure soothers, and scalp leave-ons within anti-redness, anti-photoaging, antioxidant, and recovery-support concepts.

Mixing method:

- Add during cool-down (≤40°C) after primary emulsification, or pre-disperse into the oil/lipid phase.

- For water-rich systems, use appropriate solubilizers or encapsulation to ensure clarity and delivery; add gradually with steady mixing until uniform.

- Minimize heat/oxygen/light exposure; pair with antioxidant co-systems and choose barrier packaging where appropriate.

Usage rate: 1.0–7.0% of concentrate (delivers ~0.15–1.05% carnosic acid; typical ~3.0% → ~0.45%).

Product characteristics: Clear to slightly amber liquid concentrate; mild characteristic odor.

Solubility: Oil-soluble; not water-soluble. Use lipid carriers, solubilizers, or encapsulation for aqueous systems.

Storage: Store tightly closed in a cool, dry place away from light and air.