Ingredient review
Biosaccharide Gum-1
INCI: BIOSACCHARIDE GUM-1
A gentle, biotech-derived sugar that hydrates and calms skin without stickiness, ideal for sensitive or dehydrated skin.
In plain English
Biosaccharide Gum-1 is a sugar molecule made by fermenting plant sugars with beneficial bacteria. In skincare, it acts like a sponge that pulls moisture into the skin and forms a light, invisible film to lock that moisture in. It also helps calm redness and irritation, making it a great choice for sensitive or reactive skin. Unlike some other hydrating ingredients, it doesn't feel sticky or heavy.
Review score
Safety, usefulness, and evidence
Strong fit for many routines
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- biotech
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Easy yes for most routines
Biosaccharide Gum-1 is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Biosaccharide Gum-1.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A natural polysaccharide (a type of complex sugar) produced through a biotech fermentation process using sorbitol (from corn) and a specific bacterial strain. It is rich in fucose, a sugar that mimics the skin's own natural moisturizing factors.
How it works
It works in two main ways: first, as a humectant, it attracts water from the environment and deeper skin layers to the surface. Second, it forms a thin, breathable film on the skin that reduces water loss (transepidermal water loss, or TEWL — the amount of water that evaporates from your skin). This film also helps shield the skin from irritants and pollution.
Pros
Lightweight hydration
Unlike some humectants that can feel tacky, Biosaccharide Gum-1 provides a silky, non-sticky feel on the skin, making it comfortable under makeup or sunscreen.
Calming for sensitive skin
Its fucose content helps reduce visible redness and irritation, making it a good choice for those with rosacea or reactive skin.
Cons and cautions
Limited occlusive power
While it reduces water loss, it is not as effective as petrolatum or dimethicone at sealing in moisture in very dry or windy conditions.
Potential tackiness at high levels
In formulas with more than 3%, it can leave a slightly sticky residue, especially if layered with other humectants.
Best for
- Anyone with dry, dehydrated, or sensitive skin
- Those looking for a gentle hydrating ingredient that won't clog pores
Use caution if
- People with known allergies to fermented ingredients (rare)
Usage tips
Safety summary
Biosaccharide Gum-1 is considered very safe for topical use. It has a low irritation and comedogenic rating, and no significant safety concerns have been reported in cosmetic concentrations. Patch testing is always recommended for those with extremely sensitive skin.
Research notes
Studies show that fucose-rich polysaccharides like Biosaccharide Gum-1 can reduce transepidermal water loss and improve skin hydration. Research also indicates anti-inflammatory properties, helping to calm irritated skin. However, most studies are sponsored by ingredient manufacturers, so independent peer-reviewed data is still emerging.
Common label clues
- Typical concentration
- 0.5% to 3%
- Regulatory status
- Approved for use in cosmetics globally, including by the EU CosIng database and the US FDA (as a cosmetic ingredient). No concentration restrictions are imposed.
- Common uses
- Serums, Moisturizers, Toners, Masks
- Environmental note
- Produced via fermentation, which is generally considered a low-impact, sustainable process. The raw material (corn) is renewable.
Good to know
- Biosaccharide Gum-1 is often derived from corn, so those with corn allergies should check with the brand.
- It is a vegan and cruelty-free ingredient, commonly used in 'clean beauty' formulations.
Common questions
What is Biosaccharide Gum-1 in beauty products?
Biosaccharide Gum-1 is a sugar molecule made by fermenting plant sugars with beneficial bacteria. In skincare, it acts like a sponge that pulls moisture into the skin and forms a light, invisible film to lock that moisture in. It also helps calm redness and irritation, making it a great choice for sensitive or reactive skin. Unlike some other hydrating ingredients, it doesn't feel sticky or heavy.
What does Biosaccharide Gum-1 do in a beauty product?
It works in two main ways: first, as a humectant, it attracts water from the environment and deeper skin layers to the surface. Second, it forms a thin, breathable film on the skin that reduces water loss (transepidermal water loss, or TEWL — the amount of water that evaporates from your skin). This film also helps shield the skin from irritants and pollution.
Is Biosaccharide Gum-1 safe for most people?
Biosaccharide Gum-1 is considered very safe for topical use. It has a low irritation and comedogenic rating, and no significant safety concerns have been reported in cosmetic concentrations. Patch testing is always recommended for those with extremely sensitive skin.
Who should be careful with Biosaccharide Gum-1?
People with known allergies to fermented ingredients (rare)
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.