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Principia

Brazilian dermocosmetics, backed by science

  • Est. 2020
  • São Paulo
  • Vitamin C + Ferulic Acid
  • Niacinamide + Zinc PCA
  • Glycolic Acid (AHA)
  • Cruelty-Free

Principia is a Brazilian dermocosmetics brand built on disclosed ingredient percentages and straightforward, clinical formulas. This collection features its most iconic treatment essentials: brightening Vitamin C + Ferulic Acid serums, Niacinamide + Zinc PCA for oily skin, and AHA/Glycolic Acid exfoliants paired with hyaluronic-acid hydration. The brand does not test on animals, and many formulas skip added fragrance.

Read the full story

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 active ingredients at disclosed percentages, straightforward formulations, and a minimalist, clinical aesthetic designed for everyday use.

This collection features the brand's most iconic treatment essentials — especially its targeted serums built around globally trusted actives. Highlights include Vitamin C + Ferulic Acid serums for visible brightness and uneven tone, and Niacinamide + Zinc PCA formulas for oily skin concerns like excess shine, enlarged pores, and blemish-prone texture. For smoother-looking skin, Principia is also known for its exfoliating line featuring AHA-based options such as Glycolic Acid, plus multi-active blends for advanced routines, balanced by hyaluronic-acid-focused hydration.

Many formulas are designed with a sensitive-skin-aware approach, commonly avoiding added fragrance (product-dependent). The brand states it does not test on animals, reinforcing its commitment to responsible development.

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  • Valid on orders from US$70.
  • One use per customer, no expiry date.
  • 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) front bottle view – Buy now at MKPBR.COM – Worldwide Shipping
    Save 18% Save %

    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
    1.411.000₫
    1.411.000₫ - 1.411.000₫
    1.411.000₫
    1.162.000₫
    1.162.000₫ - 1.162.000₫
    1.162.000₫

    Principia Mix-02 Principia Mix-02 is a Brazilian dermocosmetics serum developed to refine the look of under-eyes and uneven tone with a modern, ...

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    1.411.000₫
    1.411.000₫ - 1.411.000₫
    1.411.000₫
    1.162.000₫
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    1.162.000₫
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  • Principia RN-0.3 Retinol Serum 0.3% + Vitamin E 0.5% for Fine Line & Firmness Care, 1.01 fl oz (30 mL) front bottle view – Buy now at MKPBR.COM – Worldwide Shipping
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    Principia RN-0.3 Retinol Serum 0.3% + Vitamin E 0.5% for Fine Line & Firmness Care, 1.01 fl oz (30 mL)

    Principia
    1.328.000₫
    1.328.000₫ - 1.328.000₫
    1.328.000₫
    1.023.000₫
    1.023.000₫ - 1.023.000₫
    1.023.000₫

    Principia RN-0.3 Principia RN-0.3 is a Brazilian dermocosmetics night serum designed for a refined, results-focused routine—supporting the look ...

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    1.328.000₫
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    1.328.000₫
    1.023.000₫
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    1.023.000₫
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  • Principia CH-01 Face Moisturizer with Shea Butter 5% + Glycerin 5% + Niacinamide 2% for Hydration & Firmness Care, 1.76 oz (50 g) front jar view – Buy now at MKPBR.COM – Worldwide Shipping
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    Principia CH-01 Face Moisturizer with Shea Butter 5% + Glycerin 5% + Niacinamide 2% for Hydration & Firmness Care, 1.76 oz (50 g)

    Principia
    830.000₫
    830.000₫ - 830.000₫
    830.000₫
    636.000₫
    636.000₫ - 636.000₫
    636.000₫

    Principia CH-01 Principia CH-01 is a Brazilian dermocosmetics face cream created for everyday comfort with a polished, professional finish. Form...

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    830.000₫
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    830.000₫
    636.000₫
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    636.000₫
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  • Principia C-10 Vitamin C Serum 10% + Ferulic Acid 0.5% for Brightening & Fine Line Care, 1.01 fl oz (30 mL) front bottle view – Buy now at MKPBR.COM – Worldwide Shipping
    Save 14% Save %

    Principia C-10 Vitamin C Serum 10% + Ferulic Acid 0.5% for Brightening & Fine Line Care, 1.01 fl oz (30 mL)

    Principia
    1.217.000₫
    1.217.000₫ - 1.217.000₫
    1.217.000₫
    1.051.000₫
    1.051.000₫ - 1.051.000₫
    1.051.000₫

    Principia C-10 Principia C-10 is a Brazilian dermocosmetics serum designed to bring elegance and performance to daily skincare. With 10% vitamin...

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    1.217.000₫
    1.217.000₫ - 1.217.000₫
    1.217.000₫
    1.051.000₫
    1.051.000₫ - 1.051.000₫
    1.051.000₫
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  • Principia GH-01 Hydrating Face Gel with Hyaluronic Acids 1% + Glycerin 5% for Lightweight Hydration & Fine Line Care, 1.76 oz (50 g) front jar view – Buy now at MKPBR.COM – Worldwide Shipping
    Save 20% Save %

    Principia GH-01 Hydrating Face Gel with Hyaluronic Acids 1% + Glycerin 5% for Lightweight Hydration & Fine Line Care, 1.76 oz (50 g)

    Principia
    1.107.000₫
    1.107.000₫ - 1.107.000₫
    1.107.000₫
    885.000₫
    885.000₫ - 885.000₫
    885.000₫

    Principia GH-01 Principia GH-01 is a Brazilian dermocosmetics ultra-light hydrating gel designed for daily comfort with a fresh, non-greasy fini...

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    1.107.000₫
    1.107.000₫ - 1.107.000₫
    1.107.000₫
    885.000₫
    885.000₫ - 885.000₫
    885.000₫
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  • Principia AL-07 Exfoliating Toner with Lactic Acid 7% + Salicylic Acid 1% for Oil Control & Texture Care, 4.06 fl oz (120 mL) front bottle view – Buy now at MKPBR.COM – Worldwide Shipping
    Save 18% Save %

    Principia AL-07 Exfoliating Toner with Lactic Acid 7% + Salicylic Acid 1% for Oil Control & Texture Care, 4.06 fl oz (120 mL)

    Principia
    941.000₫
    941.000₫ - 941.000₫
    941.000₫
    775.000₫
    775.000₫ - 775.000₫
    775.000₫

    Principia AL-07 Principia AL-07 is a Brazilian dermocosmetics exfoliating toner created for a more refined, polished complexion—without overcomp...

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    941.000₫
    941.000₫ - 941.000₫
    941.000₫
    775.000₫
    775.000₫ - 775.000₫
    775.000₫
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  • Principia AM-10 Mandelic Acid Serum 10% + Alpha Arbutin 1% for Dark Spot & Oil Control Care, 1.01 fl oz (30 mL) front bottle view – Buy now at MKPBR.COM – Worldwide Shipping
    Save 18% Save %

    Principia AM-10 Mandelic Acid Serum 10% + Alpha Arbutin 1% for Dark Spot & Oil Control Care, 1.01 fl oz (30 mL)

    Principia
    1.107.000₫
    1.107.000₫ - 1.107.000₫
    1.107.000₫
    913.000₫
    913.000₫ - 913.000₫
    913.000₫

    Principia AM-10 Principia AM-10 is a Brazilian dermocosmetics night serum designed for visible refinement—supporting clearer-looking pores, smoo...

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    1.107.000₫
    1.107.000₫ - 1.107.000₫
    1.107.000₫
    913.000₫
    913.000₫ - 913.000₫
    913.000₫
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  • Principia OL-01 Makeup Removing Cleansing Oil with Sunflower Oil 30% + Vitamin E 1%, 6.76 fl oz (200 mL) front bottle view – Buy now at MKPBR.COM – Worldwide Shipping
    Save 16% Save %

    Principia OL-01 Makeup Removing Cleansing Oil with Sunflower Oil 30% + Vitamin E 1%, 6.76 fl oz (200 mL)

    Principia
    1.051.000₫
    1.051.000₫ - 1.051.000₫
    1.051.000₫
    885.000₫
    885.000₫ - 885.000₫
    885.000₫

    Principia OL-01 Principia OL-01 is a Brazilian dermocosmetics cleansing oil designed for an elevated first cleanse—silky, effective, and remarka...

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    1.051.000₫
    1.051.000₫ - 1.051.000₫
    1.051.000₫
    885.000₫
    885.000₫ - 885.000₫
    885.000₫
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  • Principia NC-10 Niacinamide Serum 10% + Zinc PCA 1% for Oil Control & Dark Spot Care, 1.01 fl oz (30 mL) front bottle view – Buy now at MKPBR.COM – Worldwide Shipping
    Save 9% Save %

    Principia NC-10 Niacinamide Serum 10% + Zinc PCA 1% for Oil Control & Dark Spot Care, 1.01 fl oz (30 mL)

    Principia
    941.000₫
    941.000₫ - 941.000₫
    941.000₫
    857.000₫
    857.000₫ - 857.000₫
    857.000₫

    Principia NC-10 Principia NC-10 is a Brazilian dermocosmetics essential designed for the modern glow routine: refined, lightweight, and focused ...

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    941.000₫
    941.000₫ - 941.000₫
    941.000₫
    857.000₫
    857.000₫ - 857.000₫
    857.000₫
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  • Principia Mix-01 Multi-Acid Serum for Oil Control & Blemish-Prone Skin, 1.01 fl oz (30 mL) front bottle view – Buy now at MKPBR.COM – Worldwide Shipping
    Save 14% Save %

    Principia Mix-01 Multi-Acid Serum for Oil Control & Blemish-Prone Skin, 1.01 fl oz (30 mL)

    Principia
    996.000₫
    996.000₫ - 996.000₫
    996.000₫
    857.000₫
    857.000₫ - 857.000₫
    857.000₫

    Principia Mix-01 Principia Mix-01 is a Brazilian dermocosmetics night serum created for modern, high-performance routines that prioritize clarit...

    View full details
    996.000₫
    996.000₫ - 996.000₫
    996.000₫
    857.000₫
    857.000₫ - 857.000₫
    857.000₫
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  • Principia GL-01 Salicylic Acid Face Cleanser Gel for Oil Control, 12.35 oz (350 g) front bottle view – Buy now at MKPBR.COM – Worldwide Shipping
    Save 17% Save %

    Principia GL-01 Salicylic Acid Face Cleanser Gel for Oil Control, 12.35 oz (350 g)

    Principia
    996.000₫
    996.000₫ - 996.000₫
    996.000₫
    830.000₫
    830.000₫ - 830.000₫
    830.000₫

    Principia GL-01 Principia GL-01 is a Brazilian dermocosmetics facial cleansing gel designed for a fresh, balanced cleanse—especially when skin f...

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    996.000₫
    996.000₫ - 996.000₫
    996.000₫
    830.000₫
    830.000₫ - 830.000₫
    830.000₫
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  • Principia AH-2 Hyaluronic Acid Serum 2% + Vitamin B5 1% for Hydration & Plumping Care, 1.01 fl oz (30 mL) front bottle view – Buy now at MKPBR.COM – Worldwide Shipping
    Save 13% Save %

    Principia AH-2 Hyaluronic Acid Serum 2% + Vitamin B5 1% for Hydration & Plumping Care, 1.01 fl oz (30 mL)

    Principia
    1.107.000₫
    1.107.000₫ - 1.107.000₫
    1.107.000₫
    968.000₫
    968.000₫ - 968.000₫
    968.000₫

    Principia AH-2 Principia AH-2 is a Brazilian dermocosmetics hydrator designed to deliver a polished, well-rested look—morning and night. With a ...

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    1.107.000₫
    1.107.000₫ - 1.107.000₫
    1.107.000₫
    968.000₫
    968.000₫ - 968.000₫
    968.000₫
    Save 13% Save %
  • Principia CM-01 Multi-Repair Calming Face Cream 17.5% Active Complex for Redness & Barrier Comfort Care, 1.76 oz (50 g) front jar view – Buy now at MKPBR.COM – Worldwide Shipping
    Save 18% Save %

    Principia CM-01 Multi-Repair Calming Face Cream 17.5% Active Complex for Redness & Barrier Comfort Care, 1.76 oz (50 g)

    Principia
    941.000₫
    941.000₫ - 941.000₫
    941.000₫
    775.000₫
    775.000₫ - 775.000₫
    775.000₫

    Principia CM-01 Principia CM-01 is a Brazilian dermocosmetics face cream designed to restore comfort when skin looks stressed and feels reactive...

    View full details
    941.000₫
    941.000₫ - 941.000₫
    941.000₫
    775.000₫
    775.000₫ - 775.000₫
    775.000₫
    Save 18% Save %
  • Principia GL-02 Gentle Face Cleanser Gel for Sensitive Skin Hydration & Oil Balance, 12.35 oz (350 g) front bottle view – Buy now at MKPBR.COM – Worldwide Shipping
    Save 15% Save %

    Principia GL-02 Gentle Face Cleanser Gel for Sensitive Skin Hydration & Oil Balance, 12.35 oz (350 g)

    Principia
    913.000₫
    913.000₫ - 913.000₫
    913.000₫
    775.000₫
    775.000₫ - 775.000₫
    775.000₫

    Principia GL-02 Principia GL-02 is a Brazilian dermocosmetics cleansing gel designed to respect sensitive skin while delivering a thorough, fres...

    View full details
    913.000₫
    913.000₫ - 913.000₫
    913.000₫
    775.000₫
    775.000₫ - 775.000₫
    775.000₫
    Save 15% Save %
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