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Skin explained by physicians · no hype

22 articles in English on skincare, aesthetic medicine, rosacea, dark spots, laser hair removal and aging well. Written and reviewed by iki’s medical team. Many more are available in Spanish.

Profile of a woman with dotted lines and arrows showing the path of lifting threads along the cheek and jawSkincare
November 7, 2025 · 5 min

Thread lift: how long it lasts, aftercare and realistic results

What to expect after a thread lift: how long the effect lasts, what happens week by week, which aftercare steps affect…

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Woman looking at her face with rosaceaRosacea
June 27, 2025 · 4 min

5 myths about facial rosacea (and why not to believe them)

What erythematotelangiectatic rosacea is and five common misconceptions about it, from exercise to makeup, with a…

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Facial IPL treatmentTreatments
June 19, 2025 · 6 min

Which skin problems does facial IPL treat?

Intense pulsed light treats sun spots, rosacea redness, acne, fine lines and enlarged pores. We explain how it works,…

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Woman with a towel in her hair and a red face mask covering her whole face against a pink backgroundAnti-aging
June 13, 2025 · 6 min

Salmon sperm facial: what PDRN is and what to expect

What’s known as a salmon sperm facial uses purified PDRN polynucleotides. What they do in the skin, how solid the…

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Aesthetic procedures that don't workAesthetic medicine
May 6, 2025 · 7 min

Is it possible that aesthetic medicine procedures won't work for me?

There's no age limit for aesthetic medicine, but skin changes over the years. We explain why some treatments deliver…

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Close-up of hyaluronic acid lip filler being injected with a fine needle into the lower lipAesthetic medicine
April 30, 2025 · 7 min

Lip flip or lip fillers: the differences and which to choose

A lip flip relaxes the upper lip muscle, while lip fillers add volume with hyaluronic acid. What each one does, how…

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The right laser hair removal technologies for your skin typeLaser hair removal
April 17, 2025 · 5 min

Does laser hair removal work on every skin type?

Each skin type (Fitzpatrick) needs a different laser technology. We explain which laser suits fair, medium and dark…

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Practitioner applying an energy-based facial treatment to a patient lying back with protective gogglesAnti-aging
February 18, 2025 · 5 min

Facial HIFU: how the non-surgical lift works and what to expect

Facial HIFU uses focused ultrasound to stimulate collagen in the deeper layers of the skin, without surgery. What it…

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Patient receiving aftercare following a facial treatmentTreatments
October 22, 2024 · 7 min

What should I do after a facial treatment to keep the results?

Each procedure calls for different aftercare. Guidelines for after Botox, fillers, mesotherapy, laser and peels, and…

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Adult woman noticing sagging skin on her faceTreatments
September 10, 2024 · 5 min

Tell me where your face is sagging, and I’ll tell you which treatment you need

Why skin starts to sag and which treatment fits depending on where it shows: eyelids, double chin, cheeks or nasolabial…

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What aesthetic treatments for men look likeAesthetic medicine
September 5, 2024 · 7 min

Which aesthetic procedures are best suited to men?

Men's skin is thicker and their aesthetic goals are different. We go over the facial and body treatments men use most…

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Woman considering her next non-invasive aesthetic medicine treatmentTreatments
May 6, 2024 · 7 min

What is the best treatment to start with in aesthetic medicine?

Which preventive and anti-aging treatments make sense in your 30s and 40s, and how to choose your first one based on…

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Gloved physician injecting botulinum toxin into the forehead of a patient lying backAnti-aging
February 13, 2024 · 5 min

What is baby Botox and how does it help prevent wrinkles?

What baby Botox is, how botulinum toxin works in microdoses, which areas it treats, how long it lasts, from what age it…

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Smiling young woman with makeup-free skin, hands beside her cheeks, against a light backgroundAesthetic medicine
December 26, 2023 · 5 min

Radiesse: how this collagen biostimulator works on the face

How Radiesse, the calcium hydroxylapatite collagen biostimulator, works: who it’s for, which areas it treats, how long…

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Woman lying in bed with a sleep mask pushed up on her foreheadAesthetic medicine
November 8, 2023 · 7 min

Can dark circles be removed? Treatments by type of dark circle

Each type of dark circle responds to a different treatment. We compare home remedies, skincare, hyaluronic acid,…

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Woman in a bathrobe applying face cream in front of the mirrorAnti-aging
October 27, 2023 · 8 min

The collagen myth: what the evidence says and what actually works

Taking collagen, applying it or stimulating it: what the evidence says about each option, the most repeated myths, the…

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Woman checking melasma patches on her cheek in a hand mirrorSkin conditions
October 11, 2023 · 7 min

Melasma: what it is, why it appears and what the best treatment is

A guide to melasma: what it is, why it appears, which options exist, how much lasers really help, what role vitamins…

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Two cheeks side by side: one with diffuse rosacea redness and one with calm skinSkin conditions
September 27, 2023 · 6 min

What is the best treatment for rosacea?

Rosacea isn't cured · it's controlled. Which treatment works for each type of rosacea, when IPL, the Nd:YAG laser and a…

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Close-up of a woman’s lips and smile against a blue backgroundTreatments
September 19, 2023 · 6 min

Lip fillers: what to expect, proportion and natural-looking results

Well-done lip filler doesn’t look like a procedure: it looks like your lips, rested. Proportion, step by step,…

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Physician in black gloves giving an injection in the neck of a patient lying backTreatments
September 19, 2023 · 6 min

What is Botox used for? Uses of botulinum toxin, treatment areas and myths

Botox relaxes specific muscles for a few months: it softens expression lines and has medical uses such as excessive…

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Woman applying a white face mask in front of a round mirrorAnti-aging
September 19, 2023 · 5 min

Collagen loss after 30: what happens to your skin and what actually stimulates it

Skin loses collagen gradually throughout adult life. What the study behind the 1% per year figure says, what speeds up…

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Physician performing a device-based facial treatment on a patient lying downAesthetic medicine
September 18, 2023 · 6 min

Non-surgical vs. surgical aesthetic procedures: the differences and when to choose each

Neither is better in the abstract: it depends on what needs correcting. We compare recovery, duration, ceiling and…

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