diff --git a/src/modules/shared/AddToCart/AddToCart.tsx b/src/modules/shared/AddToCart/AddToCart.tsx
index 10fb63e..c87e2e6 100644
--- a/src/modules/shared/AddToCart/AddToCart.tsx
+++ b/src/modules/shared/AddToCart/AddToCart.tsx
@@ -1,4 +1,4 @@
-import React, { useState } from 'react';
+import React, { useEffect, useState } from 'react';
 import { useNavigate } from 'react-router-dom';
 import cn from 'classnames';
 import styles from './AddToCart.module.scss';
@@ -29,6 +29,10 @@ export const AddToCart: React.FC<Props> = ({ productItem }) => {
     }
   };
 
+  useEffect(() => {
+    setIsSelected(cart.some((cartItem) => cartItem.id === productItem.id));
+  }, [cart, productItem.id]);
+
   return (
     <button
       className={cn(styles.addToCart, {
diff --git a/src/modules/shared/AddToFavourites/AddToFavourites.tsx b/src/modules/shared/AddToFavourites/AddToFavourites.tsx
index 57fb165..2a6b153 100644
--- a/src/modules/shared/AddToFavourites/AddToFavourites.tsx
+++ b/src/modules/shared/AddToFavourites/AddToFavourites.tsx
@@ -1,45 +1,51 @@
-import React, { useState } from 'react';
-import cn from 'classnames';
-import styles from './AddToFavourites.module.scss';
-import { useAppDispatch, useAppSelector } from '../../../store/hooks';
-import { actions as favouritiesActions }
-  from '../../../store/reducers/favoritesSlice';
-import { Product } from '../../../types/Product';
-
-type Props = {
-  productItem: Product;
-};
-
-export const AddToFavourites: React.FC<Props> = ({ productItem }) => {
-  const { isDarkTheme } = useAppSelector((state) => state.theme);
-  const { favorites } = useAppSelector((state) => state.favorites);
-  const dispatch = useAppDispatch();
-
-  const [isSelected, setIsSelected] = useState<boolean>(
-    !!favorites.find(favorite => favorite.id === productItem.id),
-  );
-
-  const handleFavouritiesButton = (product: Product) => {
-    if (isSelected) {
-      dispatch(favouritiesActions.remove(product.id));
-      setIsSelected(false);
-    } else {
-      dispatch(favouritiesActions.add(product));
-      setIsSelected(true);
-    }
-  };
-
-  return (
-    <button
-      type="button"
-      aria-label="Add to favourite"
-      className={cn(styles.addToFavourite, {
-        [styles.addToFavourite__DARK]: isDarkTheme,
-        [styles.addToFavourite__SELECTED]: isSelected,
-        [styles.addToFavourite__DARK__SELECTED]:
-        isSelected && isDarkTheme,
-      })}
-      onClick={() => handleFavouritiesButton(productItem)}
-    />
-  );
-};
+import React, { useEffect, useState } from 'react';
+import cn from 'classnames';
+import styles from './AddToFavourites.module.scss';
+import { useAppDispatch, useAppSelector } from '../../../store/hooks';
+import { actions as favouritiesActions }
+  from '../../../store/reducers/favoritesSlice';
+import { Product } from '../../../types/Product';
+
+type Props = {
+  productItem: Product;
+};
+
+export const AddToFavourites: React.FC<Props> = ({ productItem }) => {
+  const { isDarkTheme } = useAppSelector((state) => state.theme);
+  const { favorites } = useAppSelector((state) => state.favorites);
+  const dispatch = useAppDispatch();
+
+  const [isSelected, setIsSelected] = useState<boolean>(
+    !!favorites.find(favorite => favorite.id === productItem.id),
+  );
+
+  const handleFavouritiesButton = (product: Product) => {
+    if (isSelected) {
+      dispatch(favouritiesActions.remove(product.id));
+      setIsSelected(false);
+    } else {
+      dispatch(favouritiesActions.add(product));
+      setIsSelected(true);
+    }
+  };
+
+  useEffect(() => {
+    setIsSelected(
+      favorites.some((favoritesItem) => favoritesItem.id === productItem.id),
+    );
+  }, [favorites, productItem.id]);
+
+  return (
+    <button
+      type="button"
+      aria-label="Add to favourite"
+      className={cn(styles.addToFavourite, {
+        [styles.addToFavourite__DARK]: isDarkTheme,
+        [styles.addToFavourite__SELECTED]: isSelected,
+        [styles.addToFavourite__DARK__SELECTED]:
+        isSelected && isDarkTheme,
+      })}
+      onClick={() => handleFavouritiesButton(productItem)}
+    />
+  );
+};
diff --git a/src/store/reducers/cartSlice.ts b/src/store/reducers/cartSlice.ts
index 5cdf854..e88b6aa 100644
--- a/src/store/reducers/cartSlice.ts
+++ b/src/store/reducers/cartSlice.ts
@@ -1,61 +1,64 @@
-/* eslint-disable no-param-reassign */
-import { PayloadAction, createSlice } from '@reduxjs/toolkit';
-
-import { localClient } from '../../utils/localClient';
-import { Product, ProductWithAmount } from '../../types/Product';
-
-export interface CartState {
-  cart: ProductWithAmount[];
-}
-
-function prepareProductForCart(product: Product): ProductWithAmount {
-  return Object.assign(product, { amount: 1 });
-}
-
-const initialState: CartState = {
-  cart: localClient.read('cart') || localClient.init('cart', []),
-};
-
-const cartSlice = createSlice({
-  name: 'cart',
-  initialState,
-  reducers: {
-    add: (state, action: PayloadAction<Product>) => {
-      const preparedProduct = prepareProductForCart(action.payload);
-
-      state.cart.push(preparedProduct);
-      localClient.add('cart', preparedProduct);
-    },
-
-    remove: (state, action: PayloadAction<number>) => {
-      state.cart = state.cart.filter((item) => item.id !== action.payload);
-      localClient.delete('cart', action.payload);
-    },
-
-    increase: (state, action: PayloadAction<number>) => {
-      state.cart.forEach((item) => {
-        if (item.id === action.payload) {
-          item.amount += 1;
-          localClient.update('cart', item);
-        }
-      });
-    },
-
-    decrease: (state, action: PayloadAction<number>) => {
-      state.cart.forEach((item) => {
-        if (item.id === action.payload && item.amount > 1) {
-          item.amount -= 1;
-          localClient.update('cart', item);
-        }
-      });
-    },
-
-    clear: (state) => {
-      state.cart = [];
-      localClient.write('cart', []);
-    },
-  },
-});
-
-export default cartSlice.reducer;
-export const { actions } = cartSlice;
+/* eslint-disable no-param-reassign */
+import { PayloadAction, createSlice } from '@reduxjs/toolkit';
+
+import { localClient } from '../../utils/localClient';
+import { Product, ProductWithAmount } from '../../types/Product';
+
+export interface CartState {
+  cart: ProductWithAmount[];
+}
+
+function prepareProductForCart(product: Product): ProductWithAmount {
+  return {
+    ...product,
+    amount: 1,
+  };
+}
+
+const initialState: CartState = {
+  cart: localClient.read('cart') || localClient.init('cart', []),
+};
+
+const cartSlice = createSlice({
+  name: 'cart',
+  initialState,
+  reducers: {
+    add: (state, action: PayloadAction<Product>) => {
+      const preparedProduct = prepareProductForCart(action.payload);
+
+      state.cart.push(preparedProduct);
+      localClient.add('cart', preparedProduct);
+    },
+
+    remove: (state, action: PayloadAction<number>) => {
+      state.cart = state.cart.filter((item) => item.id !== action.payload);
+      localClient.delete('cart', action.payload);
+    },
+
+    increase: (state, action: PayloadAction<number>) => {
+      state.cart.forEach((item) => {
+        if (item.id === action.payload) {
+          item.amount += 1;
+          localClient.update('cart', item);
+        }
+      });
+    },
+
+    decrease: (state, action: PayloadAction<number>) => {
+      state.cart.forEach((item) => {
+        if (item.id === action.payload && item.amount > 1) {
+          item.amount -= 1;
+          localClient.update('cart', item);
+        }
+      });
+    },
+
+    clear: (state) => {
+      state.cart = [];
+      localClient.write('cart', []);
+    },
+  },
+});
+
+export default cartSlice.reducer;
+export const { actions } = cartSlice;