Ingredient review

C1-8 Alkyl Tetrahydroxycyclohexanoate

INCI: C1-8 ALKYL TETRAHYDROXYCYCLOHEXANOATE

A synthetic humectant that helps hydrate skin, but research on its long-term effects is still limited.

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In plain English

This ingredient is a lab-made molecule designed to pull water into the outer layer of your skin, helping it feel softer and more hydrated. It belongs to a class of ingredients called humectants, which work like tiny sponges to hold moisture. Because it's relatively new in cosmetics, there isn't a lot of independent research on how it compares to more established humectants like glycerin or hyaluronic acid.

Review score

Safety, usefulness, and evidence

3.8Good

3.8/ 5

Potentially useful with some tradeoffs

The evidence base is still emerging, so marketing claims deserve extra caution.

Risk flags are low for most users, though the finished product can still irritate.

Source: synthetic
Evidence: emerging
Irritation: low
Clogging risk: low

How reviews are scored

Quick decision guide

Useful, but context matters

C1-8 Alkyl Tetrahydroxycyclohexanoate 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 C1-8 Alkyl Tetrahydroxycyclohexanoate.
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

low

Less likely to sting, burn, or bother most users, though sensitive skin can still react.

Clogging risk

low

Less likely to feel heavy or contribute to clogged pores for most skin types.

Evidence level

emerging

The ingredient may be promising, but claims should be treated more cautiously.

What it is

C1-8 Alkyl Tetrahydroxycyclohexanoate is a synthetic ester derived from a sugar-like cyclic alcohol (tetrahydroxycyclohexane) combined with short-chain alkyl groups (C1-8). It is produced in a lab and used primarily as a humectant and skin-conditioning agent in water-based formulations.

How it works

In a cosmetic product, this ingredient sits on the skin's surface and attracts water molecules from the environment or from deeper layers of the skin. This helps increase the water content in the stratum corneum (the outermost layer of skin), temporarily plumping the skin and reducing the appearance of fine lines. It also forms a light film that can help other ingredients spread more evenly.

Pros

Lightweight hydration

Provides moisture without leaving a sticky or heavy residue, making it suitable for daytime use under makeup.

Good spreadability

Helps other ingredients in the formula spread more evenly across the skin, improving the overall feel of the product.

Cons and cautions

Limited research

There are few peer-reviewed studies on this specific ingredient, so its long-term benefits and safety are not as well established as those of traditional humectants.

Lower efficacy potential

Compared to glycerin or hyaluronic acid, this ingredient may not hold as much water, so it might not be the best choice for intense hydration needs.

Best for

People with normal to combination skin looking for lightweight hydration
Those who prefer synthetic, non-animal-derived ingredients

Use caution if

Individuals with very dry or dehydrated skin may benefit from more potent humectants

Usage tips

Apply to damp skin to maximize water-binding effect.

Layer with an occlusive moisturizer if you have dry skin to lock in the hydration.

Safety summary

Based on available data, C1-8 Alkyl Tetrahydroxycyclohexanoate has a low irritation and comedogenic risk. However, because it is a relatively new ingredient, long-term safety data is limited. It is generally considered safe for use in cosmetics at typical concentrations.

Research notes

There is limited published research specifically on this ingredient. Most evidence comes from manufacturer safety data sheets and general knowledge of similar ester humectants. More independent studies are needed to confirm its efficacy and safety profile.

Common label clues

Typical concentration: 0.1% to 2%
Regulatory status: Approved for use in cosmetics in the EU, US, and other major markets. The Cosmetic Ingredient Review (CIR) has not published a specific safety assessment for this ingredient, but similar alkyl esters are generally recognized as safe at low concentrations.
Common uses: Moisturizers, Serums, Eye creams, Anti-aging products
Environmental note: As a synthetic compound, its biodegradability and environmental impact are not well documented. It is not known to be derived from endangered or controversial sources.

Good to know

This ingredient is often used in combination with other humectants to boost overall hydration.
It is considered safe for use in leave-on and rinse-off products by major cosmetic ingredient review bodies.

Common questions

What is C1-8 Alkyl Tetrahydroxycyclohexanoate in beauty products?

What does C1-8 Alkyl Tetrahydroxycyclohexanoate do in a beauty product?

Is C1-8 Alkyl Tetrahydroxycyclohexanoate safe for most people?

Who should be careful with C1-8 Alkyl Tetrahydroxycyclohexanoate?

Individuals with very dry or dehydrated skin may benefit from more potent humectants

Research sources

Cosmetic Ingredient Review (CIR) - Safety of Alkyl EstersOpen European Chemicals Agency (ECHA) - Substance InformationOpen PubMed - Humectants in DermatologyOpen

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.