Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
retain hydration
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "retain hydration" is correct and usable in written English. You can use it in contexts related to health, skincare, or physical performance. For example: "Drinking enough water helps the body retain hydration." Alternative expressions include "maintain moisture" and "preserve fluid balance."
✓ Grammatically correct
Science
News & Media
Wiki
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
1 human-written examples
Vitamins A, D and E: These help the skin to retain hydration, improve its texture, boost collagen production and protect it from free radicals.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
It is shown that there is a maximum adsorption density and that the anion adsorbs with at least one hydration sheath intact while the cation appears to retain two hydration sheaths.
Science
González-Méijome et al. have seen that worn Si-Hy CLs have lower ability to retain bulk hydration compared to unworn Si-Hy CLs [ 13].
Another similar material (silica nanopowder, pressed, and bonded with Aremco-Bond 526N) appears to have retained its hydration after a substantial effect to dry it.
Science
Orange juice with water and salt in to keep hydration.
News & Media
Geometrical considerations taking into account the unit particle and average pore size suggest that the crystallites retain 1 2 layers of hydration water during the coagulation induced by freezing.
Classification of strontium as an outer-sphere complex and its placement on the β-plane for all surface complexes is also consistent with EXAFS spectra which show only Sr-O bonding and coordination similar to aqueous strontium indicating that sorbed strontium retains waters of hydration at the mineral surface in carbonate free solutions [26].
Science
The pulling simulation revealed that as soon as the cation reaches this level of the pore, it binds transiently to Ser6′ side chains, which accommodates its translocation, while retaining its full hydration shell.
Science
During drought stress, it is optimal for guard cells to lose water to promote stomatal closure while it is optimal for other cell types to retain water to maintain cellular hydration.
Science
(While this is true, many competent dying persons still wish to have access to legalized medically assisted death, rather than having to rely on refusing nutrition and hydration, so as to retain control over the timing of their deaths, and to avoid needlessly prolonging the process of dying).
Science
Its most important physicochemical properties are its capacity to retain water, having a very high hydration ratio, and its visco-elasticity.
Expert writing Tips
Best practice
When writing about skincare, emphasize the importance of ingredients that help the skin "retain hydration" throughout the day.
Common error
Avoid using "retain hydration" when the context requires active rehydration. "Retain hydration" is about maintaining existing moisture, not replenishing it.
Source & Trust
82%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "retain hydration" functions primarily as a verb + noun construction, where "retain" acts as a transitive verb indicating the action of holding onto something and "hydration" is the noun representing what is being held. Ludwig AI validates this usage through examples illustrating its use in contexts related to skincare, bodily functions, and material properties.
Frequent in
Science
34%
News & Media
32%
Wiki
34%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "retain hydration" is a grammatically sound verb-noun construction used to describe the act of maintaining moisture. Ludwig AI examples show it appears across scientific, news, and general contexts, with a leaning towards scientific and health-related discussions. While "retain hydration" isn't exceedingly common, it serves a clear communicative purpose: to emphasize the importance of maintaining moisture levels. Alternative phrases such as "maintain hydration" or "preserve hydration" offer similar meanings, allowing for nuanced expression depending on the specific context.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
maintain hydration
Emphasizes the ongoing effort to keep the body hydrated.
preserve hydration
Highlights the act of protecting hydration levels from loss.
keep hydrated
A more informal way of saying maintain hydration.
hold onto moisture
Focuses on preventing moisture from escaping.
maintain fluid balance
A broader term that includes electrolytes as well as water.
prevent dehydration
Focuses on stopping the process of losing hydration.
optimize water retention
Highlights maximizing the body's ability to keep water.
sustain moisture levels
Emphasizes the ongoing support of consistent moisture.
improve water absorption
Highlights the process of increasing water uptake by the body.
enhance fluid retention
Focuses on improving the body's natural fluid-holding capabilities.
FAQs
How can I use "retain hydration" in a sentence?
You can use "retain hydration" to describe how skin products or certain foods help the body to hold onto moisture. For example, "This cream helps the skin "retain hydration" throughout the day".
What are some alternatives to "retain hydration"?
Alternatives include "maintain hydration", "preserve hydration", or "keep hydrated", depending on the specific nuance you want to convey.
Is it better to say "retain hydration" or "maintain hydration"?
Both phrases are grammatically correct and can be used interchangeably in many contexts. However, ""retain hydration"" suggests holding onto existing moisture, while "maintain hydration" implies an ongoing effort to keep the body hydrated.
What does it mean to "retain hydration" in skincare?
In skincare, ""retain hydration"" refers to the skin's ability to hold onto moisture and prevent water loss, keeping it supple and healthy. Ingredients like hyaluronic acid are known to help the skin "retain hydration".
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.3/5
Expert rating
Real-world application tested