Principia Mix-02 Caffeine Serum 5% + Tranexamic Acid 3% + Ferulic Acid 0.5% for Dark Circle & Dark Spot Care, 1.01 fl oz (30 mL)
Principia Mix-02 is a Brazilian dermocosmetics serum developed to refine the look of under-eyes and uneven tone with a modern, minimalist approach. Featuring 5% caffeine, 3% tranexamic acid, and 0.5% ferulic acid, it supports a brighter-looking eye area, a more even-looking complexion, and a smoother, more luminous finish over time. Lightweight and easy to layer, Mix-02 is designed for day-and-night routines—ideal for customers who want targeted care without complexity, and for salons and resellers seeking a globally understandable active story.
Key Benefits
- Dark spot appearance support: Helps reduce the appearance of dark marks and supports a more even-looking complexion.
- Under-eye brightening support: Helps improve the look of under-eye darkness for a fresher appearance.
- Puffiness appearance care: Helps reduce the look of under-eye puffiness and support a smoother under-eye contour.
- Tone uniformity support: Helps refine the look of uneven pigmentation over time.
- Glow enhancement: Helps improve the look of radiance for a polished, luminous finish.
- Non-comedogenic profile: The brand reports no comedogenic or acnegenic effect in testing.
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Dermatologically tested (brand-reported): The brand reports irritation and sensitization testing, plus hypoallergenic / non-photoirritating evaluation.
How to use
Use daily, morning and night. Apply on clean, dry skin before creams, sunscreen, and makeup. Dispense a few drops onto fingertips (avoid touching the dropper to skin) and spread gently over the face, especially the under-eye area. Avoid direct contact with eyes. Store in a cool, dry place. Wear sunscreen daily.
In a 60-day perceived efficacy study, participants reported improvements in the under-eye area: overall look (100%), brightening (100%), and size appearance (97%) for dark circles; and for puffiness: overall look (100%), size appearance (97%), plus improvements in luminosity (100%) and uniformity (100%). The brand also reports improvement in melasma appearance (97%). Results may vary.
Ingredients Highlights
- Tranexamic Acid (3%): A synthetic derivative of the amino acid lysine. Used in skincare to support mechanisms involved in skin pigmentation, helping reduce the appearance of dark spots—including those associated with blemishes and sun exposure (appearance-focused cosmetic claim).
- Ferulic Acid (0.5%): A plant-derived antioxidant found in seeds, leaves, and bark. Ferulic acid is valued for antioxidant and soothing support, helping protect key skin components such as keratinocytes, fibroblasts, collagen, and elastin—making it a refined partner ingredient in tone-focused routines.
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Caffeine (5%): A methylxanthine alkaloid found naturally in sources such as coffee beans and tea leaves. In skincare, caffeine is widely used to support a fresher-looking eye area; it is associated with vasoconstrictive, anti-inflammatory, and antioxidant properties, helping reduce the appearance of dark circles and puffiness and supporting the look of more even tone.
Allergen warnings / cautions
- For external use only. Discontinue use if irritation occurs.
- Avoid direct contact with eyes; rinse thoroughly if contact occurs.
- Avoid unprotected sun exposure; use broad-spectrum sunscreen daily.
- Do not use on children. Keep out of reach of children.
- Store in a cool, dry place.
- According to the brand, the formula is free from parabens, petrolatum, sulfates, silicones, fragrance, and gluten.
Principia is a Brazilian dermocosmetics brand founded in 2020 in São Paulo with a clear mission: democratize high-performance skincare through science-backed formulas, radical ingredient transparency, and fair, accessible positioning. Instead of relying on hype, Principia focuses on what matters most for results-driven routines—active ingredients at disclosed percentages, straightforward formulations, and a minimalist, clinical aesthetic designed for everyday use.
FAQ
Can I use Principia Mix-02 every day?
Yes. The brand indicates daily AM/PM use. Apply gently, especially around the under-eye area.
Is Mix-02 only for the under-eye area?
It is designed for use on the face with special focus around the eyes, supporting the look of dark circles, puffiness, and uneven tone.
Do I need sunscreen while using Mix-02?
Yes. Daily broad-spectrum sunscreen helps maintain the look of tone improvements and protects the skin from sun-related unevenness.
Can I layer Mix-02 with other serums?
Yes. It is typically used before moisturizer and sunscreen. If your routine includes strong acids or retinoids, consider alternating to keep skin comfortable.
Can Mix-02 cause visible peeling?
The brand indicates it generally does not cause visible peeling. If irritation occurs, reduce frequency and support with a moisturizer.
Is Principia cruelty-free?
The brand states it does not test on animals.
Complete your routine by exploring our curated Principia Collection for a clean, balanced, everyday glow.
Add Principia Mix-02 to your cart and bring Brazilian dermocosmetic elegance to your tone and under-eye routine.
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