HA 5 Light
Lightweight hyaluronic acid serum for dehydration, plumpness and skin softness
- Regular price
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114 kr - Regular price
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- Sale price
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114 kr
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QUICK BENEFITS
- Hydrates without a heavy feel
- Helps skin look plumper and smoother
- Softens the feeling of tight, dehydrated skin
- Layers easily under moisturiser or mixed into cream
Who it´s for
Skin types
- Normal Skin
- Dry Skin
- Combination Skin
- Oily Skin
- Sensitive Skin, if used for fragrance-free hydration and comfort support rather than treatment
Concerns
- Hydration & Glow, if used for dehydration, tightness, lack of plumpness and lightweight hydration support
- Barrier Damage, if used for barrier hydration support rather than medical barrier repair
- Irritation & Redness, if used for sensitive-skin comfort support rather than redness treatment
Routine step
Hydrating serum before moisturiser, or blended with moisturiser.
Why it works
HA 5 Light is a lightweight, fast-absorbing hydrating serum with five forms of hyaluronic acid to support surface hydration, softness and a plumper-looking skin feel.
Multi-form hydration
Five forms of hyaluronic acid support hydration at different surface levels. This helps skin feel softer, smoother and more hydrated.
Surface moisture binding
Hyaluronic acid forms help bind water on the skin surface. This gives skin a plumper, more comfortable look without a heavy finish.
Comfort support
Tremella mushroom extract, panthenol and glycerin add extra hydration support. This helps reduce tightness and keeps the serum comfortable for daily layering.
Key Ingredients
5 Forms of Hyaluronic Acid
A multi-form hydration system that helps bind water at different surface levels of the skin. Larger and cross-linked HA forms support surface plumpness and longer-lasting hydration, while smaller HA forms help skin feel softer, smoother and more comfortable.
Tremella Fuciformis Mushroom Extract
A water-binding mushroom extract with a lightweight, non-sticky feel. It adds hydration support and helps skin feel softer and more comfortable.
Panthenol
A hydrating and skin-conditioning ingredient that supports comfort. It helps reduce the feeling of tightness and keeps the formula gentle-feeling.
Glycerin
A classic humectant that helps draw water into the skin’s surface layers. It supports hydration and helps skin feel less dry or tight.
How to use
Apply a few drops to the face morning and/or evening before moisturiser. Use it as a lightweight hydration step, or blend a few drops into your moisturiser if you prefer a simpler routine. Follow with cream to help seal in hydration.
FAQ
What does HA 5 Light do?
HA 5 Light gives dehydrated skin lightweight water-based hydration. It combines five forms of hyaluronic acid with Tremella mushroom extract, panthenol and glycerin to help bind moisture at the skin’s surface, soften tightness and make the skin look smoother and more plump. The formula is designed to add hydration without oiliness, richness or a heavy finish, making it especially useful for normal, combination and oily skin that still feels dehydrated.
How does hyaluronic acid work in the skin?
Hyaluronic acid is a humectant, which means it helps attract and bind water. In skincare, it works mainly in the upper layers and surface of the skin, where it helps improve hydration and reduce the feeling of tightness. Different forms of hyaluronic acid can support hydration in slightly different ways: larger forms help create a hydrated, plumper-looking surface, cross-linked forms help hold water for longer on the skin, and smaller forms support a softer, more comfortable feel. This gives hydration without adding oil or acting like a rich moisturiser.
Who is HA 5 Light best for?
HA 5 Light is suitable for all skin types looking for lightweight hydration. It is especially useful for normal, combination and oily skin that wants a hydrating serum without a heavy or sticky feel.
Should I choose HA 5 Light or HA 5 Rich?
Choose HA 5 Light if your skin is normal, combination or oily and you prefer a lightweight, fast-absorbing hydration step. Choose HA 5 Rich if your skin is normal to dry, dehydrated or tight and you prefer a silkier, richer serum texture.
Can I use HA 5 Light every day?
Yes, HA 5 Light can be used morning and/or evening. Apply it before moisturiser, or mix a few drops into your cream.
Can I use HA 5 Light with active ingredients?
Yes, HA 5 Light is a hydrating serum and can fit easily into routines with other skincare products. Use it before moisturiser to add hydration and comfort without adding exfoliating or treatment activity.
Is HA 5 Light suitable for sensitive skin?
Yes, it can be a good option for sensitive skin looking for simple hydration. The formula is fragrance-free and essential oil-free, and it focuses on hydration rather than exfoliation or strong active treatment.
Is HA 5 Light pregnancy-safe?
Yes, HA 5 Light is pregnancy-safe. If you are breastfeeding or unsure, check with your healthcare provider before use.
Ingredients (INCI)
Water, Glycerin, Peg/Ppg/Polybutylene Glycol-8/5/3 Glycerin, Sodium Hyaluronate Crosspolymer, Sodium Hyaluronate, Tremella Fuciformis (Mushroom) Extract, Hydrolyzed Hyaluronic Acid, Panthenol, Tocopherol, Carbomer, Propanediol, Pentylene Glycol, Sodium Hydroxide, Ethylhexylglycerin, Phenoxyethanol


HA 5 Light
- Regular price
-
114 kr - Regular price
-
- Sale price
-
114 kr
Why know to glow
Curated, science-led skincare focused on effective ingredients and real results. We select products that work with your skin, not against it.
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SCIENCE-LED
Chosen for proven ingredients — we reject more than we stock.
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CRUELTY-FREE
No animal testing, ever.
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EXPERT GUIDANCE
Recommendations from people who read the formulas, not the hype.
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FULL ROUTINES
Each step works with the next, not against it.
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STOCKHOLM-BASED
Fast, reliable delivery — local roots, worldwide shipping.
Shipping and returns
Orders are processed within 1 business day and shipped from Stockholm, Sweden.
Delivery time is typically 1–3 working days within Sweden. Shipping costs are calculated at checkout, with free shipping available on orders over 500 SEK.
You have 30 days to return your order if you are not satisfied. Please contact us at hello@knowtoglow.com with your order number to start a return.
Payments
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All payments are processed securely using encrypted connections to ensure your information is protected.

