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María Monterrubio

THE UNLIMITED SKIN

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María Monterrubio
THE UNLIMITED SKIN
  • Sunless tanning
    Skincare

    A natural-looking self-tan without damaging your skin: 6 steps that work

    14 September, 202315 December, 2025

    What self-tanner should you use? Don’t they generate free radicals and may damage your skin? Here I clarify the myth and the truth about sunless tanners. And show you 6 key steps you shouldn’t miss to achieve a safe, natural-looking sunless tan. 

    Leer El Artículo A natural-looking self-tan without damaging your skin: 6 steps that workContinue

  • Pure vitamin C under occlusion: 3 proven benefits for your skin
    Skincare

    Pure vitamin C under occlusion: 3 proven benefits for your skin

    20 July, 202315 December, 2025

    Vitamin C is essential for collagen formation and thus to keep young skin and organs. When applied to the skin, vitamin C boosts photoprotection and decreases hyperpigmentation. But that requires the penetration and action of L-ascorbic acid inside the skin. Learn how to optimize your vitamin C storage and a strategy to maximize skin penetration that works!

    Leer El Artículo Pure vitamin C under occlusion: 3 proven benefits for your skinContinue

  • 3 superb lightweight sunscreens for oily and combination skin
    Skincare

    3 superb lightweight sunscreens for oily and combination skin

    6 July, 202315 December, 2025

    Learn about the three lightest, most advanced sunscreens for this summer! Featherweight, makeup bliss, or quick mattifying fix. You can’t miss this! They’ll become essentials in your skincare stash, especially if you’ve got oily or combination skin.

    Leer El Artículo 3 superb lightweight sunscreens for oily and combination skinContinue

  • Retinal benefits for summer: how to use it without irritation
    Skincare

    Retinal benefits for summer: how to use it without irritation

    22 June, 202315 December, 2025

    Worried about that light skin peeling you notice upon retinol, retinal, or retinoic acid and whether you should use retinoids this summer? Are retinoids the right fit for your skin right now? Let’s resolve your doubts point by point – in the blink of an eye.

    Leer El Artículo Retinal benefits for summer: how to use it without irritationContinue

  • Rough or acne-prone body skin: how to smooth it without irritation
    Skincare

    Rough or acne-prone body skin: how to smooth it without irritation

    8 June, 202315 December, 2025

    What if you could have a smooth body in just a few minutes without scrubbing your skin? What about getting rid of back acne in a few days without medication? Or, how about preventing and flattening seborrheic keratoses without a dermatologist? Yes, that’s possible! And I’m telling you my best-kept secrets for that. 

    Leer El Artículo Rough or acne-prone body skin: how to smooth it without irritationContinue

  • Don’t use copper peptides with these 2 skincare ingredients
    Skincare

    Don’t use copper peptides with these 2 skincare ingredients

    12 May, 20238 April, 2026

    Copper peptides can regenerate the skin and boost collagen. But mixing copper peptides with certain skincare ingredients may reduce their effectiveness. Learn how to use them correctly.

    Leer El Artículo Don’t use copper peptides with these 2 skincare ingredientsContinue

  • How to choose a reliable resveratrol supplement (and actually absorb it)
    Skincare

    How to choose a reliable resveratrol supplement (and actually absorb it)

    11 April, 202316 December, 2025

    Learn the proper approach to taking resveratrol-rich foods and learn to identify trustworthy resveratrol supplements to reduce your biological age and prolong your youth. Many take resveratrol but don’t absorb it. Don’t be one of them!

    Leer El Artículo How to choose a reliable resveratrol supplement (and actually absorb it)Continue

  • How resveratrol improves your skin, body, and vitality
    Skincare

    How resveratrol improves your skin, body, and vitality

    27 March, 202316 December, 2025

    Get a glimpse of the mechanisms through which resveratrol works within your skin and body and how it can diminish your biological age.

    Leer El Artículo How resveratrol improves your skin, body, and vitalityContinue

  • Tranexamic acid for dark circles and melasma: results and recommended products
    Skincare

    Tranexamic acid for dark circles and melasma: results and recommended products

    1 March, 202315 December, 2025

    Discover how the topical tranexamic acid therapy I followed for three months worked out for the prominent dark circles and melasma that I had developed due to persistent local inflammation in the under-eye area. And get acquainted with the latest skincare products with tranexamic acid that can make a difference.

    Leer El Artículo Tranexamic acid for dark circles and melasma: results and recommended productsContinue

  • post inflammatory hyperpigmentation
    Skincare

    Tranexamic acid for post-inflammatory hyperpigmentation: my results and how it works

    15 February, 202315 December, 2025

    Post-inflammatory hyper-pigmentation is the accumulation of excessive melanin in the skin after pro-inflammatory events (such as intense ultraviolet light exposure, acne, or laser-induced trauma) and can occur in the under-eye area. Over there, it may provoke prominent dark circles and make you feel like a panda bear, especially if you develop melasma near that area. I have recently been in that situation. Here I tell you how I ended there and why and how tranexamic acid is helping me to move forward to a better place.

    Leer El Artículo Tranexamic acid for post-inflammatory hyperpigmentation: my results and how it worksContinue

  • The 3 best sunscreens for oily and combination skin
    Skincare

    The 3 best sunscreens for oily and combination skin

    17 June, 202216 December, 2025

    Are La Roche-Posay UVmune 400 sunscreens truly superior? My analysis, verdict, and the 3 best sunscreens for oily and combination skin.

    Leer El Artículo The 3 best sunscreens for oily and combination skinContinue

  • Why apply retinoids more sparingly
    Skincare

    Why apply retinol more sparingly

    27 May, 202216 December, 2025

    I often hear dermatologists say that, for skin anti-aging purposes, once you introduce retinol (or other retinoids) into your skincare routine, you should ideally apply it every day. Here I discuss my viewpoint on why that might not be optimal, based on science, my knowledge of skin biology, and my expertise with topical retinoids.

    Leer El Artículo Why apply retinol more sparinglyContinue

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The Unlimited Skin

Soluciones para el cuidado suave y efectivo de la piel basadas en su gran capacidad de regeneración.

Aquí encontrarás tratamientos que funcionan, las experiencias de mi propia piel e información precisa y contrastada.

Si tienes preguntas, contáctame.

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