FAQs
Find answers to the most common questions about our products, service, and shipping.
Your Questions About Ingredients
Yes. All KIYOMI SKIN formulas are intentionally free from parabens, silicones, mineral oils, microplastics, and synthetic fragrances.
This keeps your skin free from unnecessary irritants and ensures our products stay focused on what truly matters: effective results and high skin compatibility.
5-ALA (5-aminolevulinic acid) is a naturally occurring amino acid that plays a key role in cellular energy production. In skincare, it helps support skin renewal, boosts collagen-supporting processes, and improves the skin’s ability to retain moisture.
Clinical studies from Japan show that 5-ALA can visibly smooth the skin and promote a more energized-looking complexion.
Yes. We avoid added fragrance and synthetic scents to minimize the risk of irritation. All formulas are dermatologically tested and suitable for all skin types - including sensitive skin.
We manufacture all KIYOMI SKIN products in Germany to ensure the highest quality standards. Whenever possible, we source our raw materials from local or European suppliers.
Our glass bottles and jars are made in Italy, and our cartons come from an environmentally conscious printer in Germany.
Your Questions About 5-ALA
5-ALA (5-aminolevulinic acid) is a naturally occurring amino acid that plays an important role in cellular energy metabolism. It’s found in small amounts in foods like spinach and tomatoes.
In skincare, 5-ALA helps energize skin cells -supporting hydration, firmness, and a healthy, natural glow.
5-ALA supports the mitochondria - the “powerhouses” of your cells - and helps boost ATP production, the skin’s source of cellular energy.
With more energy, the skin can form collagen and elastin more effectively, retain moisture, and regenerate more efficiently.
The result: smoother, more radiant, more resilient-looking skin.
Yes. 5-ALA is dermatologically tested and well tolerated, even by sensitive skin.
Its gentle mechanism makes it compatible with dry, reactive, or easily stressed skin types.
Yes. A Japanese, placebo-controlled double-blind study (Naraoka et al., 2020) showed that 5-ALA significantly increases skin hydration and reduces the appearance of fine lines - with visible improvements after just four weeks of consistent use.
5-ALA is ideal for anyone looking to support and refine their skin over time. It’s especially beneficial for those who want:
- Boosted hydration and a natural glow
- Support in preventing and reducing fine lines
- A gentle way to encourage collagen production
- Improved resilience and long-term skin balance
- A minimalist, science-backed skincare routine
Yes. 5-ALA is dermatologically tested and safe for daily use - even for sensitive skin.
Clinical research shows improvements in as little as 4 weeks: increased hydration (p=0.021) and a measurable reduction in fine lines (p=0.034).
Results may vary based on skin type and consistency of use.
Yes. 5-ALA is naturally produced by the body and is also found in small amounts in foods like spinach, tomatoes, and potatoes.
For skincare, it’s created through biotechnology to ensure purity, stability, and maximum efficacy.
Absolutely. 5-ALA pairs well with hyaluronic acid, ceramides, vitamin C, peptides, and other widely used actives. It’s a gentle, versatile ingredient that enhances most routines.
5-ALA supports the skin on multiple levels:
- Deep hydration & improved moisture retention
- Visibly smoother skin and reduced fine lines
- Enhanced firmness and elasticity
- Support for natural cell renewal and regeneration
- Long-term radiance and improved skin resilience
Our Products, Your Routine & How to Use
Our products fit seamlessly into any routine. Apply your serum after cleansing and before your day or night cream. Follow with your moisturizer to lock in hydration and enhance the benefits of the active ingredients.
Tip: 5-ALA products can be used both morning and night and layer well with other actives like hyaluronic acid, niacinamide, or vitamin C.
Our formulas are highly concentrated, so a little goes a long way. For creams, an amount about the size of a pea is usually enough. You can always add a bit more if needed, but with skincare, less is often more - especially when the ingredients are as effective as ours.
5-ALA (5-aminolevulinic acid) helps boost your skin’s natural energy production. This supports key functions like cell renewal, collagen formation, and moisture retention - the foundation of smoother, fresher, and visibly more radiant skin.
Yes. All products have been dermatologically tested by an independent German institute and rated “excellent,” including on sensitive skin. Because 5-ALA is a naturally occurring amino acid found in the body, it’s considered especially gentle and well-tolerated.
Our formulas are silicone-free. While silicones can create an instant silky feel, they don’t provide long-term hydration. Instead, we use high-quality actives like 5-ALA, hyaluronic acid, and botanical oils that nourish deeply and help strengthen your skin’s own moisture balance.
If you previously used silicone-based products, the texture may feel different at first. Give your skin a little time to adjust - with consistent use, the formulas reveal their full benefits and promote a naturally healthy, long-lasting, well-hydrated complexion.
