diff --git a/README.md b/README.md
index 8281ec4..44e869a 100644
--- a/README.md
+++ b/README.md
@@ -150,12 +150,12 @@ You can even run other Cypress commands before deciding to skip or continue
 
 ```js
 it('runs if task returns production', () => {
-  cy.task('getDbName').then(name => cy.onlyOn(name === 'production'))
+  cy.task('getDbName').then((name) => cy.onlyOn(name === 'production'))
   // equivalent
-  cy.task('getDbName').then(name => onlyOn(name === 'production'))
+  cy.task('getDbName').then((name) => onlyOn(name === 'production'))
   // equivalent
   cy.task('getDbName')
-    .then(name => name === 'production')
+    .then((name) => name === 'production')
     .then(onlyOn)
 })
 ```
@@ -213,7 +213,7 @@ CYPRESS_ENVIRONMENT=staging npx cypress run
 Inside the spec file you can write
 
 ```js
-import {onlyOn} from '@cypress/skip-test'
+import {onlyOn, skipOn} from '@cypress/skip-test'
 const stubServer = () => {
   cy.server()
   cy.route('/api/me', 'fx:me.json')
@@ -224,9 +224,12 @@ it('works', () => {
   onlyOn('staging', stubServer)
   ...
 })
+skipOn('staging', () => {
+  it('works on non-staging', () => {...})
+})
 ```
 
-The test `works` will stub network calls when running on `staging`, but will skip calling `stubServer` for other environments.
+The test `works` will stub network calls when running on `staging`, but will skip calling `stubServer` for other environments. The test `works on non-staging` will be skipped when the environment is `staging`.
 
 ### Notes
 
diff --git a/cypress/integration/bool-spec.js b/cypress/integration/bool-spec.js
index 6086a2a..cbb849e 100644
--- a/cypress/integration/bool-spec.js
+++ b/cypress/integration/bool-spec.js
@@ -27,6 +27,16 @@ it('runs if task returns production', () => {
     .then(onlyOn)
 })
 
+it('runs when on the set environment', () => {
+  Cypress.env('ENVIRONMENT', 'production')
+  onlyOn('production')
+})
+
+it('skips when on the set environment', () => {
+  Cypress.env('ENVIRONMENT', 'production')
+  skipOn('production')
+})
+
 it('skips if task returns production', () => {
   cy.task('getDbName').then(name => skipOn(name === 'production'))
 })
diff --git a/cypress/integration/callback-spec.js b/cypress/integration/callback-spec.js
index 2fcd7d7..46f5e4d 100644
--- a/cypress/integration/callback-spec.js
+++ b/cypress/integration/callback-spec.js
@@ -31,3 +31,30 @@ it('does not run given function for other environments', () => {
   })
   expect(called, 'callback was NOT called').to.be.undefined
 })
+
+it('does not run given function for some environment', () => {
+  Cypress.env('ENVIRONMENT', 'test1')
+  let called
+  skipOn('test1', () => {
+    called = true
+  })
+  expect(called, 'callback was called').to.be.undefined
+})
+
+it('runs given function for other environments', () => {
+  Cypress.env('ENVIRONMENT', 'test1')
+  let called
+  skipOn('testX', () => {
+    called = true
+  })
+  expect(called, 'callback was NOT called').to.be.true
+})
+
+it('ignores non-string environment', () => {
+  Cypress.env('ENVIRONMENT', 42)
+  let called
+  skipOn('42', () => {
+    called = true
+  })
+  expect(called, 'callback was NOT called').to.be.true
+})
diff --git a/index.js b/index.js
index 2b9f05a..03bf1c6 100644
--- a/index.js
+++ b/index.js
@@ -3,7 +3,7 @@
 
 const { _ } = Cypress
 
-const checkBrowserName = name => {
+const checkBrowserName = (name) => {
   if ('isBrowser' in Cypress) {
     // use the new v4.0 method
     // @ts-ignore
@@ -23,7 +23,7 @@ const checkBrowserName = name => {
  * normalizeName('WIN') // 'win32'
  * normalizeName('localhost') // 'localhost'
  */
-const normalizeName = name => {
+const normalizeName = (name) => {
   name = name.toLowerCase()
 
   // values are normalized strings we will use
@@ -42,7 +42,7 @@ const normalizeName = name => {
  * @param {string} name Browser name, platform or url.
  * @returns {boolean} Returns true if the test runs against the given condition.
  */
-const isOn = name => {
+const isOn = (name) => {
   if (!_.isString(name)) {
     throw new Error('Invalid syntax: isOn expects a string argument')
   }
@@ -75,11 +75,13 @@ const skip = () => {
   return ctx.skip()
 }
 
-const isPlatform = name => ['win32', 'darwin', 'linux'].includes(name)
-const isBrowser = name => ['electron', 'chrome', 'firefox'].includes(name)
-const isHeadedName = name => ['headed', 'headless'].includes(name)
+const isPlatform = (name) => ['win32', 'darwin', 'linux'].includes(name)
+const isBrowser = (name) => ['electron', 'chrome', 'firefox'].includes(name)
+const isHeadedName = (name) => ['headed', 'headless'].includes(name)
+const isEnvironmentSet = () =>
+  typeof Cypress.env('ENVIRONMENT') === 'string' && Cypress.env('ENVIRONMENT')
 
-const headedMatches = name => {
+const headedMatches = (name) => {
   if (name === 'headed') {
     return Cypress.browser.isHeaded
   }
@@ -96,10 +98,10 @@ const headedMatches = name => {
  * @param {string} name Is checked against `ENVIRONMENT` value
  * @returns {boolean} true if the given argument matches environment string
  */
-const isEnvironment = name =>
+const isEnvironment = (name) =>
   Cypress.env('ENVIRONMENT') && Cypress.env('ENVIRONMENT') === name
 
-const matchesUrlPart = normalizedName => {
+const matchesUrlPart = (normalizedName) => {
   // assuming name is part of the url, and the baseUrl should be set
   const url = Cypress.config('baseUrl') || location.origin
   return url && url.includes(normalizedName)
@@ -163,6 +165,13 @@ const skipOn = (name, cb) => {
       return it(`Skipping test(s) in ${normalizedName} mode`)
     }
 
+    if (isEnvironmentSet()) {
+      if (!isEnvironment(normalizedName)) {
+        return cb()
+      }
+      return it(`Skipping test(s) on ${normalizedName} environment`)
+    }
+
     if (!matchesUrlPart(normalizedName)) {
       return cb()
     }
@@ -183,6 +192,12 @@ const skipOn = (name, cb) => {
       return
     }
 
+    if (isEnvironmentSet()) {
+      if (isEnvironment(normalizedName)) {
+        return skip()
+      }
+    }
+
     if (matchesUrlPart(normalizedName)) {
       return skip()
     }