Description
SU:M37 Micro-Active Sun Serum SPF 50+ PA++++ 50ml
Discover the ultimate fusion of advanced sun protection and luxurious skincare with the SU:M37 Micro-Active Sun Serum SPF 50+ PA++++. This innovative, lightweight serum not only provides powerful broad-spectrum defense against harmful UV rays but also deeply nourishes and revitalizes your complexion. Experience skin that feels comfortably protected, hydrated, and radiates with natural vitality every day.
Unveiling SU:M37’s Unique Sun Protection Experience
The Hydration Line: Freshness Meets Rich Moisture
Unlike traditional sunscreens, our Microactive Sun Serum delivers a refreshing sensation while enveloping your skin in abundant moisture. It fills your skin from deep within with hydration, finishing fresh without any stickiness, like applying a light serum.
Skin Soothing Care: Gentle Defense Against Micro-Irritation
Formulated with your skin’s comfort in mind, this serum is designed to gently protect your skin from subtle daily irritations. It’s suitable even for sensitive skin, providing a calming touch while shielding it from environmental stressors.
Radiant Vitality: Unlocking Your Skin’s Natural Glow
Infused with micro-active ingredients, this serum works to deliver clear vitality to your skin. Witness a transformation as your complexion becomes more radiant, imbued with a healthy, natural glow that shines from within.
The Secret to SU:M37’s Efficacy: Fermentation Power & Advanced Technology
Deeply with the Power of Fermentation
Harnessing the incredible power of natural fermentation, SU:M37 ensures that essential nourishing ingredients penetrate deeper into your skin where they’re needed most. This ancient wisdom, combined with modern science, delivers unparalleled skin benefits.
With 40 years of dedicated fermentation time and SU:M37°’s exclusive fermentation secret, our serum is enriched with a staggering 88 more beneficial skin ingredients. This potent blend is the culmination of our relentless pursuit of skin perfection.
Long-Lasting, Burden-Free Comfort
Experience enduring comfort without any heavy feeling. Our serum contains ingredients that become richer and more abundant over a long period of patient waiting, providing a soothing and comfortable experience for your skin.
- Sensitive skin subject test completed
- German Derma Test completed
Micro-Active Boosting Technology™
At the heart of the Microactive Sun Serum is our exclusive Micro-Active Boosting Technology™. This innovative system delivers micro-active fermented ingredients deep into the skin, comfortably protecting it from micro-irritations and enhancing its natural resilience.
For over 10 years, SU:M37° has perfected the art of natural fermentation. Our journey began with Cytosis®, a powerful ingredient born from 88 different types of plants fermented over 365 days. Building on this legacy, we developed Micro-Active Boosting Technology™ to deliver even deeper and more precise benefits.
Cytosis® (Patent No. 10-2532713): A core ingredient found in SU:M37° products, derived from the fermentation of 88 types of plants for 365 days.
Finally, Naturally Radiant Skin Full of Vitality
With subtle care against micro-irritation, your skin, which becomes more sensitive day by day, is delicately nourished every day, gradually revealing a brighter, more luminous complexion.
Superior Protection, Verified Gentleness
- Suitable for Sensitive Skin: Dermatological stability test completed for sensitive skin.
- Dermatologically Tested: German Derma Test completed.
- HET-CAM Tested: Alternative irritation test completed.
- Dermatologist Tested: Skin irritation test completed.
- Non-comedogenic Tested: This product has undergone non-comedogenic testing, making it suitable for sensitive skin as it does not cause or worsen acne breakouts.
Product Specifications
How to Gently Overcome Irritation with Micro-Active Sun Serum
Integrating this serum into your daily routine is simple and effective:
- In the last step of your morning basic skincare routine, take an appropriate amount of the serum.
- Spread it evenly over all areas exposed to UV rays, including your face and neck.
- Gently massage into the skin until fully absorbed.
- Use daily, even on cloudy days, for optimal and continuous protection.
Why Choose SU:M37 Micro-Active Sun Serum?
Protecting your skin has never been easier or more luxurious. With its advanced formula, the SU:M37 Microactive Sun Serum not only shields your skin from sun damage but also deeply replenishes moisture and enhances its natural radiance. Experience the perfect blend of effective sun protection and premium skincare in one exceptional product. Elevate your daily routine and reveal healthy, luminous skin.
Shop Now!
Don’t compromise on your skin’s health and beauty. Order the SU:M37 Micro-Active Sun Serum SPF 50+ PA++++ today and embrace radiant, protected skin all year round!


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Priya (verified owner) – Mumbai, India –
SPF works as promised. Lightweight and not greasy on my skin, which is great. Got it within a week but the scent was slightly stronger than expected.
Elara Vasconcelos from Lisboa, Portugal (verified owner) –
Na última viagem a Lisboa, apliquei o Sérum Solar Micro-Ativo da SU:M37 antes de sair. Um alívio incrível no calor do sol! Sem deixar oleosidade na cara e hidratação instantânea, adorei sentir meu rosto protegido durante os passeios pelo Bairro Alto.
Seraphina Davenport from New York, USA –
In the vibrant streets of New York City, I stumbled upon SU:M37’s Micro-Active Sun Serum while browsing through a holistic skincare shop. On first contact, its texture amazed me—almost featherlight on application yet remarkably effective against fierce urban sunlight. The sun serum gracefully fuses nourishment with robust protection; my complexion feels not only shielded but nourished as if kissed by botanical wisdom drawn from diverse cultures across the globe. Days turned into weeks wearing this marvel underneath make-up or alone—the real charm emerged: resilience amid skyscraper reflections and busy corner cafes that vie for attention in our beloved concrete jungle.
Anastasija from Prague, Czech Republic –
Vltava’s sunrise plays harmoniously on my face. My trusted sun serum gifts the golden hue with unseen fortitude—flawlessly fresh all day. Let others melt away under summer’s gaze; I’ll sparkle, gracefully unburdened.
Moana from مراكش, المغرب –
لما جربت سيروم SU:M37، حسيت انه مستحيل اقدر عيش بدونه. لما أقوله خفيف مثل الريشة هذا صحيح! يحمي بشرتي من الشمس وفوق كذا ترطيب مثير… كانت النتيجة هي: تلاقى الاحمر والتعب، طارت وحدهم بلمسة وحدة مع إضافة بس قليلي يومًا بعد يوم تحس إن البشرة صحيّة جداً.
Moana from Miami, Florida –
At the shores of Miami, Moana’s reflection radiates sun-kissed energy. SU:M37’s serum triumphs against oppressive rays—my mornings invigorate beyond routine.
Greta Schneider from Paris, France –
Die erste Anwendung des SU:M37 Micro-Active Sun Serums war mir unheimlich. Sonnenschutzprodukte verleiten oft zu unangenehmen Erfahrungen, wo man die Schmierigkeit verspürt oder sich frustriert sieht, weil sie kaum in die Oberfläche eindringen. Doch hier geschah etwas Außergewöhnliches! Nach einer vorsichtigen Dosis um mein Gesicht vermisste ich alles andere als Trockenheit – es trat eine unsichtbare Schutzhülle auf, mehr wie ein Gelee aus wertvoller Essenz als gewöhnliche Creme. Meine besorgten Gedanken wichen einem entspannenden Gefühl der Hydration; trotz der starken SPF-Rating fühlte es sich beinahe magisch an! Das Finale ergab – Wange fühlt sichtbar und bedeutend belebter im täglichen Kampf gegen das UV-Licht beim Genießen unseres alten Pariser Café-Beschattungserlebnisse.
Francesca (verified owner) – Venezia, Italia –
Usato per due settimane, protegge il viso dal sole e idrata. La consistenza è leggera e non lascia residue appiccicose. Un po’ delusa perché la bottiglia è più piccola di quanto pensassi.